Finding the Fourth Proportional to 99,464.94, 137,215.27 and 59,156.10

Step by Step Solution

1. Step 1: Write the proportion equation
   99,464.94 : 137,215.27 = 59,156.10 : x
2. Step 2: Convert to fraction form
   99,464.94/137,215.27 = 59,156.10/x
3. Step 3: Cross multiply
   99,464.94x = 137,215.27 × 59,156.10
4. Step 4: Simplify right side
   99,464.94x = 8,117,120,233.65
5. Step 5: Solve for x
   x = 8,117,120,233.65/99,464.94
6. Step 6: Final answer
   x = 81,607.85