Finding the Fourth Proportional to 13,726.59, 20,594.79 and 5,402.00

Step by Step Solution

1. Step 1: Write the proportion equation
   13,726.59 : 20,594.79 = 5,402.00 : x
2. Step 2: Convert to fraction form
   13,726.59/20,594.79 = 5,402.00/x
3. Step 3: Cross multiply
   13,726.59x = 20,594.79 × 5,402.00
4. Step 4: Simplify right side
   13,726.59x = 111,252,952.61
5. Step 5: Solve for x
   x = 111,252,952.61/13,726.59
6. Step 6: Final answer
   x = 8,104.92