Finding the Fourth Proportional to 22,409.46, 31,069.98 and 21,068.10

Step by Step Solution

1. Step 1: Write the proportion equation
   22,409.46 : 31,069.98 = 21,068.10 : x
2. Step 2: Convert to fraction form
   22,409.46/31,069.98 = 21,068.10/x
3. Step 3: Cross multiply
   22,409.46x = 31,069.98 × 21,068.10
4. Step 4: Simplify right side
   22,409.46x = 654,585,445.64
5. Step 5: Solve for x
   x = 654,585,445.64/22,409.46
6. Step 6: Final answer
   x = 29,210.23