Finding the Fourth Proportional to 31,726.32, 47,579.88 and 13,254

Step by Step Solution

1. Step 1: Write the proportion equation
   31,726.32 : 47,579.88 = 13,254 : x
2. Step 2: Convert to fraction form
   31,726.32/47,579.88 = 13,254/x
3. Step 3: Cross multiply
   31,726.32x = 47,579.88 × 13,254
4. Step 4: Simplify right side
   31,726.32x = 630,623,729.52
5. Step 5: Solve for x
   x = 630,623,729.52/31,726.32
6. Step 6: Final answer
   x = 19,876.99