Finding the Fourth Proportional to 31,726.24, 43,782.24 and 19,150.72

Step by Step Solution

1. Step 1: Write the proportion equation
   31,726.24 : 43,782.24 = 19,150.72 : x
2. Step 2: Convert to fraction form
   31,726.24/43,782.24 = 19,150.72/x
3. Step 3: Cross multiply
   31,726.24x = 43,782.24 × 19,150.72
4. Step 4: Simplify right side
   31,726.24x = 838,461,419.21
5. Step 5: Solve for x
   x = 838,461,419.21/31,726.24
6. Step 6: Final answer
   x = 26,428.01