Finding the Fourth Proportional to 5,186.50, 7,157.55 and 2,948.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,186.50 : 7,157.55 = 2,948.47 : x
2. Step 2: Convert to fraction form
   5,186.50/7,157.55 = 2,948.47/x
3. Step 3: Cross multiply
   5,186.50x = 7,157.55 × 2,948.47
4. Step 4: Simplify right side
   5,186.50x = 21,103,821.45
5. Step 5: Solve for x
   x = 21,103,821.45/5,186.50
6. Step 6: Final answer
   x = 4,068.99