Finding the Fourth Proportional to 78,342.90, 108,112.86 and 42,532.62

Step by Step Solution

1. Step 1: Write the proportion equation
   78,342.90 : 108,112.86 = 42,532.62 : x
2. Step 2: Convert to fraction form
   78,342.90/108,112.86 = 42,532.62/x
3. Step 3: Cross multiply
   78,342.90x = 108,112.86 × 42,532.62
4. Step 4: Simplify right side
   78,342.90x = 4,598,323,191.49
5. Step 5: Solve for x
   x = 4,598,323,191.49/78,342.90
6. Step 6: Final answer
   x = 58,694.83