Finding the Fourth Proportional to 22,493.40, 31,043.10 and 13,061.40

Step by Step Solution

1. Step 1: Write the proportion equation
   22,493.40 : 31,043.10 = 13,061.40 : x
2. Step 2: Convert to fraction form
   22,493.40/31,043.10 = 13,061.40/x
3. Step 3: Cross multiply
   22,493.40x = 31,043.10 × 13,061.40
4. Step 4: Simplify right side
   22,493.40x = 405,466,346.34
5. Step 5: Solve for x
   x = 405,466,346.34/22,493.40
6. Step 6: Final answer
   x = 18,026.01