Finding the Fourth Proportional to 9,111.42, 12,573.56 and 5,132.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,111.42 : 12,573.56 = 5,132.46 : x
2. Step 2: Convert to fraction form
   9,111.42/12,573.56 = 5,132.46/x
3. Step 3: Cross multiply
   9,111.42x = 12,573.56 × 5,132.46
4. Step 4: Simplify right side
   9,111.42x = 64,533,353.74
5. Step 5: Solve for x
   x = 64,533,353.74/9,111.42
6. Step 6: Final answer
   x = 7,082.69