Finding the Fourth Proportional to 31,510.14, 43,500.06 and 21,354.82

Step by Step Solution

1. Step 1: Write the proportion equation
   31,510.14 : 43,500.06 = 21,354.82 : x
2. Step 2: Convert to fraction form
   31,510.14/43,500.06 = 21,354.82/x
3. Step 3: Cross multiply
   31,510.14x = 43,500.06 × 21,354.82
4. Step 4: Simplify right side
   31,510.14x = 928,935,951.29
5. Step 5: Solve for x
   x = 928,935,951.29/31,510.14
6. Step 6: Final answer
   x = 29,480.54