Finding the Fourth Proportional to 82,802.72, 114,401.36 and 57,764

Step by Step Solution

1. Step 1: Write the proportion equation
   82,802.72 : 114,401.36 = 57,764 : x
2. Step 2: Convert to fraction form
   82,802.72/114,401.36 = 57,764/x
3. Step 3: Cross multiply
   82,802.72x = 114,401.36 × 57,764
4. Step 4: Simplify right side
   82,802.72x = 6,608,280,159.04
5. Step 5: Solve for x
   x = 6,608,280,159.04/82,802.72
6. Step 6: Final answer
   x = 79,807.53