Finding the Fourth Proportional to 9,742.12, 13,442.52 and 5,549.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,742.12 : 13,442.52 = 5,549.56 : x
2. Step 2: Convert to fraction form
   9,742.12/13,442.52 = 5,549.56/x
3. Step 3: Cross multiply
   9,742.12x = 13,442.52 × 5,549.56
4. Step 4: Simplify right side
   9,742.12x = 74,600,071.29
5. Step 5: Solve for x
   x = 74,600,071.29/9,742.12
6. Step 6: Final answer
   x = 7,657.48