Finding the Fourth Proportional to 13,392.46, 18,482.71 and 7,426.05

Step by Step Solution

1. Step 1: Write the proportion equation
   13,392.46 : 18,482.71 = 7,426.05 : x
2. Step 2: Convert to fraction form
   13,392.46/18,482.71 = 7,426.05/x
3. Step 3: Cross multiply
   13,392.46x = 18,482.71 × 7,426.05
4. Step 4: Simplify right side
   13,392.46x = 137,253,589.71
5. Step 5: Solve for x
   x = 137,253,589.71/13,392.46
6. Step 6: Final answer
   x = 10,248.57