Finding the Fourth Proportional to 22,861.98, 31,550.43 and 13,430.46

Step by Step Solution

1. Step 1: Write the proportion equation
   22,861.98 : 31,550.43 = 13,430.46 : x
2. Step 2: Convert to fraction form
   22,861.98/31,550.43 = 13,430.46/x
3. Step 3: Cross multiply
   22,861.98x = 31,550.43 × 13,430.46
4. Step 4: Simplify right side
   22,861.98x = 423,736,788.10
5. Step 5: Solve for x
   x = 423,736,788.10/22,861.98
6. Step 6: Final answer
   x = 18,534.56