Finding the Fourth Proportional to 78,545.75, 108,393.60 and 42,736.02

Step by Step Solution

1. Step 1: Write the proportion equation
   78,545.75 : 108,393.60 = 42,736.02 : x
2. Step 2: Convert to fraction form
   78,545.75/108,393.60 = 42,736.02/x
3. Step 3: Cross multiply
   78,545.75x = 108,393.60 × 42,736.02
4. Step 4: Simplify right side
   78,545.75x = 4,632,311,057.47
5. Step 5: Solve for x
   x = 4,632,311,057.47/78,545.75
6. Step 6: Final answer
   x = 58,975.96