Finding the Fourth Proportional to 64,683.47, 89,264.92 and 35,612.72

Step by Step Solution

1. Step 1: Write the proportion equation
   64,683.47 : 89,264.92 = 35,612.72 : x
2. Step 2: Convert to fraction form
   64,683.47/89,264.92 = 35,612.72/x
3. Step 3: Cross multiply
   64,683.47x = 89,264.92 × 35,612.72
4. Step 4: Simplify right side
   64,683.47x = 3,178,966,401.17
5. Step 5: Solve for x
   x = 3,178,966,401.17/64,683.47
6. Step 6: Final answer
   x = 49,146.51