Finding the Fourth Proportional to 11,457.54, 17,155.44 and 7,498.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,457.54 : 17,155.44 = 7,498.98 : x
2. Step 2: Convert to fraction form
   11,457.54/17,155.44 = 7,498.98/x
3. Step 3: Cross multiply
   11,457.54x = 17,155.44 × 7,498.98
4. Step 4: Simplify right side
   11,457.54x = 128,648,301.45
5. Step 5: Solve for x
   x = 128,648,301.45/11,457.54
6. Step 6: Final answer
   x = 11,228.27