Finding the Fourth Proportional to 56,813.24, 78,543.98 and 42,641.48

Step by Step Solution

1. Step 1: Write the proportion equation
   56,813.24 : 78,543.98 = 42,641.48 : x
2. Step 2: Convert to fraction form
   56,813.24/78,543.98 = 42,641.48/x
3. Step 3: Cross multiply
   56,813.24x = 78,543.98 × 42,641.48
4. Step 4: Simplify right side
   56,813.24x = 3,349,231,552.29
5. Step 5: Solve for x
   x = 3,349,231,552.29/56,813.24
6. Step 6: Final answer
   x = 58,951.60