Finding the Fourth Proportional to 102,499.87, 153,794.21 and 55,059.61

Step by Step Solution

1. Step 1: Write the proportion equation
   102,499.87 : 153,794.21 = 55,059.61 : x
2. Step 2: Convert to fraction form
   102,499.87/153,794.21 = 55,059.61/x
3. Step 3: Cross multiply
   102,499.87x = 153,794.21 × 55,059.61
4. Step 4: Simplify right side
   102,499.87x = 8,467,849,222.86
5. Step 5: Solve for x
   x = 8,467,849,222.86/102,499.87
6. Step 6: Final answer
   x = 82,613.27