Finding the Fourth Proportional to 78,545.30, 108,393.81 and 42,736.82

Step by Step Solution

1. Step 1: Write the proportion equation
   78,545.30 : 108,393.81 = 42,736.82 : x
2. Step 2: Convert to fraction form
   78,545.30/108,393.81 = 42,736.82/x
3. Step 3: Cross multiply
   78,545.30x = 108,393.81 × 42,736.82
4. Step 4: Simplify right side
   78,545.30x = 4,632,406,747.08
5. Step 5: Solve for x
   x = 4,632,406,747.08/78,545.30
6. Step 6: Final answer
   x = 58,977.52