Finding the Fourth Proportional to 142,003,089,055.46, 195,970,422,888.23 and 78,638,315,743.47

Step by Step Solution

1. Step 1: Write the proportion equation
   142,003,089,055.46 : 195,970,422,888.23 = 78,638,315,743.47 : x
2. Step 2: Convert to fraction form
   142,003,089,055.46/195,970,422,888.23 = 78,638,315,743.47/x
3. Step 3: Cross multiply
   142,003,089,055.46x = 195,970,422,888.23 × 78,638,315,743.47
4. Step 4: Simplify right side
   142,003,089,055.46x = 15,410,783,991,465,972,334,592
5. Step 5: Solve for x
   x = 15,410,783,991,465,972,334,592/142,003,089,055.46
6. Step 6: Final answer
   x = 108,524,286,999.47