Finding the Fourth Proportional to 22,773.24, 31,423.98 and 13,821.12

Step by Step Solution

1. Step 1: Write the proportion equation
   22,773.24 : 31,423.98 = 13,821.12 : x
2. Step 2: Convert to fraction form
   22,773.24/31,423.98 = 13,821.12/x
3. Step 3: Cross multiply
   22,773.24x = 31,423.98 × 13,821.12
4. Step 4: Simplify right side
   22,773.24x = 434,314,598.46
5. Step 5: Solve for x
   x = 434,314,598.46/22,773.24
6. Step 6: Final answer
   x = 19,071.27