Finding the Fourth Proportional to 9,111.93, 12,574.16 and 5,575.14

Step by Step Solution

1. Step 1: Write the proportion equation
   9,111.93 : 12,574.16 = 5,575.14 : x
2. Step 2: Convert to fraction form
   9,111.93/12,574.16 = 5,575.14/x
3. Step 3: Cross multiply
   9,111.93x = 12,574.16 × 5,575.14
4. Step 4: Simplify right side
   9,111.93x = 70,102,728.78
5. Step 5: Solve for x
   x = 70,102,728.78/9,111.93
6. Step 6: Final answer
   x = 7,693.51