Finding the Fourth Proportional to 102,227.54, 141,072.89 and 56,904.80

Step by Step Solution

1. Step 1: Write the proportion equation
   102,227.54 : 141,072.89 = 56,904.80 : x
2. Step 2: Convert to fraction form
   102,227.54/141,072.89 = 56,904.80/x
3. Step 3: Cross multiply
   102,227.54x = 141,072.89 × 56,904.80
4. Step 4: Simplify right side
   102,227.54x = 8,027,723,600.98
5. Step 5: Solve for x
   x = 8,027,723,600.98/102,227.54
6. Step 6: Final answer
   x = 78,528.00