Finding the Fourth Proportional to 71,178.48, 98,225.82 and 39,348.72

Step by Step Solution

1. Step 1: Write the proportion equation
   71,178.48 : 98,225.82 = 39,348.72 : x
2. Step 2: Convert to fraction form
   71,178.48/98,225.82 = 39,348.72/x
3. Step 3: Cross multiply
   71,178.48x = 98,225.82 × 39,348.72
4. Step 4: Simplify right side
   71,178.48x = 3,865,060,287.95
5. Step 5: Solve for x
   x = 3,865,060,287.95/71,178.48
6. Step 6: Final answer
   x = 54,300.97