Finding the Fourth Proportional to 82,931.50, 114,445.50 and 47,121.55

Step by Step Solution

1. Step 1: Write the proportion equation
   82,931.50 : 114,445.50 = 47,121.55 : x
2. Step 2: Convert to fraction form
   82,931.50/114,445.50 = 47,121.55/x
3. Step 3: Cross multiply
   82,931.50x = 114,445.50 × 47,121.55
4. Step 4: Simplify right side
   82,931.50x = 5,392,849,350.53
5. Step 5: Solve for x
   x = 5,392,849,350.53/82,931.50
6. Step 6: Final answer
   x = 65,027.76