Finding the Fourth Proportional to 25,139.86, 34,693.02 and 13,961.86

Step by Step Solution

1. Step 1: Write the proportion equation
   25,139.86 : 34,693.02 = 13,961.86 : x
2. Step 2: Convert to fraction form
   25,139.86/34,693.02 = 13,961.86/x
3. Step 3: Cross multiply
   25,139.86x = 34,693.02 × 13,961.86
4. Step 4: Simplify right side
   25,139.86x = 484,379,088.22
5. Step 5: Solve for x
   x = 484,379,088.22/25,139.86
6. Step 6: Final answer
   x = 19,267.37