Finding the Fourth Proportional to 99,463,025.91, 137,268,259.59 and 58,209,951.09

Step by Step Solution

1. Step 1: Write the proportion equation
   99,463,025.91 : 137,268,259.59 = 58,209,951.09 : x
2. Step 2: Convert to fraction form
   99,463,025.91/137,268,259.59 = 58,209,951.09/x
3. Step 3: Cross multiply
   99,463,025.91x = 137,268,259.59 × 58,209,951.09
4. Step 4: Simplify right side
   99,463,025.91x = 7,990,378,676,943,324
5. Step 5: Solve for x
   x = 7,990,378,676,943,324/99,463,025.91
6. Step 6: Final answer
   x = 80,335,165.79