Finding the Fourth Proportional to 5,499.10, 8,232.45 and 5,178.70

Step by Step Solution

1. Step 1: Write the proportion equation
   5,499.10 : 8,232.45 = 5,178.70 : x
2. Step 2: Convert to fraction form
   5,499.10/8,232.45 = 5,178.70/x
3. Step 3: Cross multiply
   5,499.10x = 8,232.45 × 5,178.70
4. Step 4: Simplify right side
   5,499.10x = 42,633,388.82
5. Step 5: Solve for x
   x = 42,633,388.82/5,499.10
6. Step 6: Final answer
   x = 7,752.79