Finding the Fourth Proportional to 31,155.08, 42,993.47 and 17,726.05

Step by Step Solution

1. Step 1: Write the proportion equation
   31,155.08 : 42,993.47 = 17,726.05 : x
2. Step 2: Convert to fraction form
   31,155.08/42,993.47 = 17,726.05/x
3. Step 3: Cross multiply
   31,155.08x = 42,993.47 × 17,726.05
4. Step 4: Simplify right side
   31,155.08x = 762,104,095.30
5. Step 5: Solve for x
   x = 762,104,095.30/31,155.08
6. Step 6: Final answer
   x = 24,461.63