Finding the Fourth Proportional to 71,145.48, 98,180.72 and 39,314.10

Step by Step Solution

1. Step 1: Write the proportion equation
   71,145.48 : 98,180.72 = 39,314.10 : x
2. Step 2: Convert to fraction form
   71,145.48/98,180.72 = 39,314.10/x
3. Step 3: Cross multiply
   71,145.48x = 98,180.72 × 39,314.10
4. Step 4: Simplify right side
   71,145.48x = 3,859,886,644.15
5. Step 5: Solve for x
   x = 3,859,886,644.15/71,145.48
6. Step 6: Final answer
   x = 54,253.43