Finding the Fourth Proportional to 82,989.32, 114,434.50 and 56,085.16

Step by Step Solution

1. Step 1: Write the proportion equation
   82,989.32 : 114,434.50 = 56,085.16 : x
2. Step 2: Convert to fraction form
   82,989.32/114,434.50 = 56,085.16/x
3. Step 3: Cross multiply
   82,989.32x = 114,434.50 × 56,085.16
4. Step 4: Simplify right side
   82,989.32x = 6,418,077,242.02
5. Step 5: Solve for x
   x = 6,418,077,242.02/82,989.32
6. Step 6: Final answer
   x = 77,336.18