Finding the Fourth Proportional to 7,434.90, 11,155.98 and 5,257.62

Step by Step Solution

1. Step 1: Write the proportion equation
   7,434.90 : 11,155.98 = 5,257.62 : x
2. Step 2: Convert to fraction form
   7,434.90/11,155.98 = 5,257.62/x
3. Step 3: Cross multiply
   7,434.90x = 11,155.98 × 5,257.62
4. Step 4: Simplify right side
   7,434.90x = 58,653,903.57
5. Step 5: Solve for x
   x = 58,653,903.57/7,434.90
6. Step 6: Final answer
   x = 7,889.00