Finding the Fourth Proportional to 82,159.39, 113,353.45 and 64,876.89

Step by Step Solution

1. Step 1: Write the proportion equation
   82,159.39 : 113,353.45 = 64,876.89 : x
2. Step 2: Convert to fraction form
   82,159.39/113,353.45 = 64,876.89/x
3. Step 3: Cross multiply
   82,159.39x = 113,353.45 × 64,876.89
4. Step 4: Simplify right side
   82,159.39x = 7,354,019,306.77
5. Step 5: Solve for x
   x = 7,354,019,306.77/82,159.39
6. Step 6: Final answer
   x = 89,509.18