Finding the Fourth Proportional to 83,976.75, 115,875.50 and 47,672.55

Step by Step Solution

1. Step 1: Write the proportion equation
   83,976.75 : 115,875.50 = 47,672.55 : x
2. Step 2: Convert to fraction form
   83,976.75/115,875.50 = 47,672.55/x
3. Step 3: Cross multiply
   83,976.75x = 115,875.50 × 47,672.55
4. Step 4: Simplify right side
   83,976.75x = 5,524,080,329.16
5. Step 5: Solve for x
   x = 5,524,080,329.16/83,976.75
6. Step 6: Final answer
   x = 65,781.07