Finding the Fourth Proportional to 82,783.72, 114,375.14 and 57,745

Step by Step Solution

1. Step 1: Write the proportion equation
   82,783.72 : 114,375.14 = 57,745 : x
2. Step 2: Convert to fraction form
   82,783.72/114,375.14 = 57,745/x
3. Step 3: Cross multiply
   82,783.72x = 114,375.14 × 57,745
4. Step 4: Simplify right side
   82,783.72x = 6,604,592,459.30
5. Step 5: Solve for x
   x = 6,604,592,459.30/82,783.72
6. Step 6: Final answer
   x = 79,781.30