Finding the Fourth Proportional to 31,921.56, 47,892.06 and 18,746.10

Step by Step Solution

1. Step 1: Write the proportion equation
   31,921.56 : 47,892.06 = 18,746.10 : x
2. Step 2: Convert to fraction form
   31,921.56/47,892.06 = 18,746.10/x
3. Step 3: Cross multiply
   31,921.56x = 47,892.06 × 18,746.10
4. Step 4: Simplify right side
   31,921.56x = 897,789,345.97
5. Step 5: Solve for x
   x = 897,789,345.97/31,921.56
6. Step 6: Final answer
   x = 28,124.86