Finding the Fourth Proportional to 260,411.76, 390,488.42 and 82,895.70

Step by Step Solution

1. Step 1: Write the proportion equation
   260,411.76 : 390,488.42 = 82,895.70 : x
2. Step 2: Convert to fraction form
   260,411.76/390,488.42 = 82,895.70/x
3. Step 3: Cross multiply
   260,411.76x = 390,488.42 × 82,895.70
4. Step 4: Simplify right side
   260,411.76x = 32,369,810,503.32
5. Step 5: Solve for x
   x = 32,369,810,503.32/260,411.76
6. Step 6: Final answer
   x = 124,302.41