Finding the Fourth Proportional to 10,257.62, 14,155.52 and 5,541.91

Step by Step Solution

1. Step 1: Write the proportion equation
   10,257.62 : 14,155.52 = 5,541.91 : x
2. Step 2: Convert to fraction form
   10,257.62/14,155.52 = 5,541.91/x
3. Step 3: Cross multiply
   10,257.62x = 14,155.52 × 5,541.91
4. Step 4: Simplify right side
   10,257.62x = 78,448,617.84
5. Step 5: Solve for x
   x = 78,448,617.84/10,257.62
6. Step 6: Final answer
   x = 7,647.84