Finding the Fourth Proportional to 71,292.72, 98,388.90 and 42,613.32

Step by Step Solution

1. Step 1: Write the proportion equation
   71,292.72 : 98,388.90 = 42,613.32 : x
2. Step 2: Convert to fraction form
   71,292.72/98,388.90 = 42,613.32/x
3. Step 3: Cross multiply
   71,292.72x = 98,388.90 × 42,613.32
4. Step 4: Simplify right side
   71,292.72x = 4,192,677,680.15
5. Step 5: Solve for x
   x = 4,192,677,680.15/71,292.72
6. Step 6: Final answer
   x = 58,809.34