Finding the Fourth Proportional to 102,187.94, 141,022.05 and 56,868.98

Step by Step Solution

1. Step 1: Write the proportion equation
   102,187.94 : 141,022.05 = 56,868.98 : x
2. Step 2: Convert to fraction form
   102,187.94/141,022.05 = 56,868.98/x
3. Step 3: Cross multiply
   102,187.94x = 141,022.05 × 56,868.98
4. Step 4: Simplify right side
   102,187.94x = 8,019,780,141.01
5. Step 5: Solve for x
   x = 8,019,780,141.01/102,187.94
6. Step 6: Final answer
   x = 78,480.69