Finding the Fourth Proportional to 71,061.18, 106,573.20 and 21,127.83

Step by Step Solution

1. Step 1: Write the proportion equation
   71,061.18 : 106,573.20 = 21,127.83 : x
2. Step 2: Convert to fraction form
   71,061.18/106,573.20 = 21,127.83/x
3. Step 3: Cross multiply
   71,061.18x = 106,573.20 × 21,127.83
4. Step 4: Simplify right side
   71,061.18x = 2,251,659,919.29
5. Step 5: Solve for x
   x = 2,251,659,919.29/71,061.18
6. Step 6: Final answer
   x = 31,686.22