Finding the Fourth Proportional to 9,111.72, 12,574.76 and 5,132.44

Step by Step Solution

1. Step 1: Write the proportion equation
   9,111.72 : 12,574.76 = 5,132.44 : x
2. Step 2: Convert to fraction form
   9,111.72/12,574.76 = 5,132.44/x
3. Step 3: Cross multiply
   9,111.72x = 12,574.76 × 5,132.44
4. Step 4: Simplify right side
   9,111.72x = 64,539,201.21
5. Step 5: Solve for x
   x = 64,539,201.21/9,111.72
6. Step 6: Final answer
   x = 7,083.10