Finding the Fourth Proportional to 12,426.48, 18,639.59 and 5,028.93

Step by Step Solution

1. Step 1: Write the proportion equation
   12,426.48 : 18,639.59 = 5,028.93 : x
2. Step 2: Convert to fraction form
   12,426.48/18,639.59 = 5,028.93/x
3. Step 3: Cross multiply
   12,426.48x = 18,639.59 × 5,028.93
4. Step 4: Simplify right side
   12,426.48x = 93,737,168.19
5. Step 5: Solve for x
   x = 93,737,168.19/12,426.48
6. Step 6: Final answer
   x = 7,543.34