Finding the Fourth Proportional to 88,005.34, 131,756.43 and 82,418.92

Step by Step Solution

1. Step 1: Write the proportion equation
   88,005.34 : 131,756.43 = 82,418.92 : x
2. Step 2: Convert to fraction form
   88,005.34/131,756.43 = 82,418.92/x
3. Step 3: Cross multiply
   88,005.34x = 131,756.43 × 82,418.92
4. Step 4: Simplify right side
   88,005.34x = 10,859,222,663.66
5. Step 5: Solve for x
   x = 10,859,222,663.66/88,005.34
6. Step 6: Final answer
   x = 123,392.77