Finding the Fourth Proportional to 260,614.80, 390,959.46 and 83,123.82

Step by Step Solution

1. Step 1: Write the proportion equation
   260,614.80 : 390,959.46 = 83,123.82 : x
2. Step 2: Convert to fraction form
   260,614.80/390,959.46 = 83,123.82/x
3. Step 3: Cross multiply
   260,614.80x = 390,959.46 × 83,123.82
4. Step 4: Simplify right side
   260,614.80x = 32,498,043,780.34
5. Step 5: Solve for x
   x = 32,498,043,780.34/260,614.80
6. Step 6: Final answer
   x = 124,697.61