Finding the Fourth Proportional to 93,541.30, 129,123.93 and 57,745.78

Step by Step Solution

1. Step 1: Write the proportion equation
   93,541.30 : 129,123.93 = 57,745.78 : x
2. Step 2: Convert to fraction form
   93,541.30/129,123.93 = 57,745.78/x
3. Step 3: Cross multiply
   93,541.30x = 129,123.93 × 57,745.78
4. Step 4: Simplify right side
   93,541.30x = 7,456,362,054.52
5. Step 5: Solve for x
   x = 7,456,362,054.52/93,541.30
6. Step 6: Final answer
   x = 79,711.98