Finding the Fourth Proportional to 5,144.16, 7,672.35 and 5,055.30

Step by Step Solution

1. Step 1: Write the proportion equation
   5,144.16 : 7,672.35 = 5,055.30 : x
2. Step 2: Convert to fraction form
   5,144.16/7,672.35 = 5,055.30/x
3. Step 3: Cross multiply
   5,144.16x = 7,672.35 × 5,055.30
4. Step 4: Simplify right side
   5,144.16x = 38,786,030.96
5. Step 5: Solve for x
   x = 38,786,030.96/5,144.16
6. Step 6: Final answer
   x = 7,539.82