Finding the Fourth Proportional to 7,535.86, 10,399.55 and 4,178.61

Step by Step Solution

1. Step 1: Write the proportion equation
   7,535.86 : 10,399.55 = 4,178.61 : x
2. Step 2: Convert to fraction form
   7,535.86/10,399.55 = 4,178.61/x
3. Step 3: Cross multiply
   7,535.86x = 10,399.55 × 4,178.61
4. Step 4: Simplify right side
   7,535.86x = 43,455,663.63
5. Step 5: Solve for x
   x = 43,455,663.63/7,535.86
6. Step 6: Final answer
   x = 5,766.52