Finding the Fourth Proportional to 78,398.52, 108,191.12 and 42,589.23

Step by Step Solution

1. Step 1: Write the proportion equation
   78,398.52 : 108,191.12 = 42,589.23 : x
2. Step 2: Convert to fraction form
   78,398.52/108,191.12 = 42,589.23/x
3. Step 3: Cross multiply
   78,398.52x = 108,191.12 × 42,589.23
4. Step 4: Simplify right side
   78,398.52x = 4,607,776,280.69
5. Step 5: Solve for x
   x = 4,607,776,280.69/78,398.52
6. Step 6: Final answer
   x = 58,773.77