Finding the Fourth Proportional to 78,294.57, 108,046.11 and 42,484.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,294.57 : 108,046.11 = 42,484.50 : x
2. Step 2: Convert to fraction form
   78,294.57/108,046.11 = 42,484.50/x
3. Step 3: Cross multiply
   78,294.57x = 108,046.11 × 42,484.50
4. Step 4: Simplify right side
   78,294.57x = 4,590,284,960.30
5. Step 5: Solve for x
   x = 4,590,284,960.30/78,294.57
6. Step 6: Final answer
   x = 58,628.39