Finding the Fourth Proportional to 251,516,388.72, 347,089,061.22 and 141,507,839.28

Step by Step Solution

1. Step 1: Write the proportion equation
   251,516,388.72 : 347,089,061.22 = 141,507,839.28 : x
2. Step 2: Convert to fraction form
   251,516,388.72/347,089,061.22 = 141,507,839.28/x
3. Step 3: Cross multiply
   251,516,388.72x = 347,089,061.22 × 141,507,839.28
4. Step 4: Simplify right side
   251,516,388.72x = 49,115,823,090,965,848
5. Step 5: Solve for x
   x = 49,115,823,090,965,848/251,516,388.72
6. Step 6: Final answer
   x = 195,278,817.98