Finding the Fourth Proportional to 5,191.42, 7,750.15 and 5,009.16

Step by Step Solution

1. Step 1: Write the proportion equation
   5,191.42 : 7,750.15 = 5,009.16 : x
2. Step 2: Convert to fraction form
   5,191.42/7,750.15 = 5,009.16/x
3. Step 3: Cross multiply
   5,191.42x = 7,750.15 × 5,009.16
4. Step 4: Simplify right side
   5,191.42x = 38,821,741.37
5. Step 5: Solve for x
   x = 38,821,741.37/5,191.42
6. Step 6: Final answer
   x = 7,478.06