Finding the Fourth Proportional to 78,363.90, 108,141.84 and 42,553.62

Step by Step Solution

1. Step 1: Write the proportion equation
   78,363.90 : 108,141.84 = 42,553.62 : x
2. Step 2: Convert to fraction form
   78,363.90/108,141.84 = 42,553.62/x
3. Step 3: Cross multiply
   78,363.90x = 108,141.84 × 42,553.62
4. Step 4: Simplify right side
   78,363.90x = 4,601,826,765.46
5. Step 5: Solve for x
   x = 4,601,826,765.46/78,363.90
6. Step 6: Final answer
   x = 58,723.81