Finding the Fourth Proportional to 7,531.05, 10,401.57 and 5,008.79

Step by Step Solution

1. Step 1: Write the proportion equation
   7,531.05 : 10,401.57 = 5,008.79 : x
2. Step 2: Convert to fraction form
   7,531.05/10,401.57 = 5,008.79/x
3. Step 3: Cross multiply
   7,531.05x = 10,401.57 × 5,008.79
4. Step 4: Simplify right side
   7,531.05x = 52,099,279.80
5. Step 5: Solve for x
   x = 52,099,279.80/7,531.05
6. Step 6: Final answer
   x = 6,917.93