Finding the Fourth Proportional to 140,299,019.60, 210,443,786.04 and 49,420,233.68

Step by Step Solution

1. Step 1: Write the proportion equation
   140,299,019.60 : 210,443,786.04 = 49,420,233.68 : x
2. Step 2: Convert to fraction form
   140,299,019.60/210,443,786.04 = 49,420,233.68/x
3. Step 3: Cross multiply
   140,299,019.60x = 210,443,786.04 × 49,420,233.68
4. Step 4: Simplify right side
   140,299,019.60x = 10,400,181,082,600,722
5. Step 5: Solve for x
   x = 10,400,181,082,600,722/140,299,019.60
6. Step 6: Final answer
   x = 74,128,679.67