Finding the Fourth Proportional to 82,158.39, 113,352.08 and 64,875.89

Step by Step Solution

1. Step 1: Write the proportion equation
   82,158.39 : 113,352.08 = 64,875.89 : x
2. Step 2: Convert to fraction form
   82,158.39/113,352.08 = 64,875.89/x
3. Step 3: Cross multiply
   82,158.39x = 113,352.08 × 64,875.89
4. Step 4: Simplify right side
   82,158.39x = 7,353,817,032.35
5. Step 5: Solve for x
   x = 7,353,817,032.35/82,158.39
6. Step 6: Final answer
   x = 89,507.80