Finding the Fourth Proportional to 260,013.70, 389,826.15 and 110,131.30

Step by Step Solution

1. Step 1: Write the proportion equation
   260,013.70 : 389,826.15 = 110,131.30 : x
2. Step 2: Convert to fraction form
   260,013.70/389,826.15 = 110,131.30/x
3. Step 3: Cross multiply
   260,013.70x = 389,826.15 × 110,131.30
4. Step 4: Simplify right side
   260,013.70x = 42,932,060,673.50
5. Step 5: Solve for x
   x = 42,932,060,673.50/260,013.70
6. Step 6: Final answer
   x = 165,114.61