Finding the Fourth Proportional to 82,540.56, 113,650.93 and 64,464.30

Step by Step Solution

1. Step 1: Write the proportion equation
   82,540.56 : 113,650.93 = 64,464.30 : x
2. Step 2: Convert to fraction form
   82,540.56/113,650.93 = 64,464.30/x
3. Step 3: Cross multiply
   82,540.56x = 113,650.93 × 64,464.30
4. Step 4: Simplify right side
   82,540.56x = 7,326,427,646.80
5. Step 5: Solve for x
   x = 7,326,427,646.80/82,540.56
6. Step 6: Final answer
   x = 88,761.55