Finding the Fourth Proportional to 82,538.56, 113,648.17 and 64,462.30

Step by Step Solution

1. Step 1: Write the proportion equation
   82,538.56 : 113,648.17 = 64,462.30 : x
2. Step 2: Convert to fraction form
   82,538.56/113,648.17 = 64,462.30/x
3. Step 3: Cross multiply
   82,538.56x = 113,648.17 × 64,462.30
4. Step 4: Simplify right side
   82,538.56x = 7,326,022,225.45
5. Step 5: Solve for x
   x = 7,326,022,225.45/82,538.56
6. Step 6: Final answer
   x = 88,758.79