Finding the Fourth Proportional to 102,913.96, 142,022.82 and 57,594.28

Step by Step Solution

1. Step 1: Write the proportion equation
   102,913.96 : 142,022.82 = 57,594.28 : x
2. Step 2: Convert to fraction form
   102,913.96/142,022.82 = 57,594.28/x
3. Step 3: Cross multiply
   102,913.96x = 142,022.82 × 57,594.28
4. Step 4: Simplify right side
   102,913.96x = 8,179,702,061.47
5. Step 5: Solve for x
   x = 8,179,702,061.47/102,913.96
6. Step 6: Final answer
   x = 79,480.98