Finding the Fourth Proportional to 82,538.43, 113,648 and 64,462.17

Step by Step Solution

1. Step 1: Write the proportion equation
   82,538.43 : 113,648 = 64,462.17 : x
2. Step 2: Convert to fraction form
   82,538.43/113,648 = 64,462.17/x
3. Step 3: Cross multiply
   82,538.43x = 113,648 × 64,462.17
4. Step 4: Simplify right side
   82,538.43x = 7,325,996,696.16
5. Step 5: Solve for x
   x = 7,325,996,696.16/82,538.43
6. Step 6: Final answer
   x = 88,758.61