Finding the Fourth Proportional to 13,397.49, 18,488.50 and 7,429

Step by Step Solution

1. Step 1: Write the proportion equation
   13,397.49 : 18,488.50 = 7,429 : x
2. Step 2: Convert to fraction form
   13,397.49/18,488.50 = 7,429/x
3. Step 3: Cross multiply
   13,397.49x = 18,488.50 × 7,429
4. Step 4: Simplify right side
   13,397.49x = 137,351,066.50
5. Step 5: Solve for x
   x = 137,351,066.50/13,397.49
6. Step 6: Final answer
   x = 10,252.00