Finding the Fourth Proportional to 99,987,139.78, 149,949,695.57 and 35,275,812.10

Step by Step Solution

1. Step 1: Write the proportion equation
   99,987,139.78 : 149,949,695.57 = 35,275,812.10 : x
2. Step 2: Convert to fraction form
   99,987,139.78/149,949,695.57 = 35,275,812.10/x
3. Step 3: Cross multiply
   99,987,139.78x = 149,949,695.57 × 35,275,812.10
4. Step 4: Simplify right side
   99,987,139.78x = 5,289,597,285,379,522
5. Step 5: Solve for x
   x = 5,289,597,285,379,522/99,987,139.78
6. Step 6: Final answer
   x = 52,902,776.27