Finding the Fourth Proportional to 102,656.50, 141,665.97 and 55,552.50

Step by Step Solution

1. Step 1: Write the proportion equation
   102,656.50 : 141,665.97 = 55,552.50 : x
2. Step 2: Convert to fraction form
   102,656.50/141,665.97 = 55,552.50/x
3. Step 3: Cross multiply
   102,656.50x = 141,665.97 × 55,552.50
4. Step 4: Simplify right side
   102,656.50x = 7,869,898,798.43
5. Step 5: Solve for x
   x = 7,869,898,798.43/102,656.50
6. Step 6: Final answer
   x = 76,662.45