Finding the Fourth Proportional to 62,730.72, 86,577.12 and 38,864.16

Step by Step Solution

1. Step 1: Write the proportion equation
   62,730.72 : 86,577.12 = 38,864.16 : x
2. Step 2: Convert to fraction form
   62,730.72/86,577.12 = 38,864.16/x
3. Step 3: Cross multiply
   62,730.72x = 86,577.12 × 38,864.16
4. Step 4: Simplify right side
   62,730.72x = 3,364,747,044.02
5. Step 5: Solve for x
   x = 3,364,747,044.02/62,730.72
6. Step 6: Final answer
   x = 53,637.95