Finding the Fourth Proportional to 78,342.59, 108,111.10 and 42,532.29

Step by Step Solution

1. Step 1: Write the proportion equation
   78,342.59 : 108,111.10 = 42,532.29 : x
2. Step 2: Convert to fraction form
   78,342.59/108,111.10 = 42,532.29/x
3. Step 3: Cross multiply
   78,342.59x = 108,111.10 × 42,532.29
4. Step 4: Simplify right side
   78,342.59x = 4,598,212,657.42
5. Step 5: Solve for x
   x = 4,598,212,657.42/78,342.59
6. Step 6: Final answer
   x = 58,693.65