Finding the Fourth Proportional to 7,621.98, 10,455.38 and 7,552.86

Step by Step Solution

1. Step 1: Write the proportion equation
   7,621.98 : 10,455.38 = 7,552.86 : x
2. Step 2: Convert to fraction form
   7,621.98/10,455.38 = 7,552.86/x
3. Step 3: Cross multiply
   7,621.98x = 10,455.38 × 7,552.86
4. Step 4: Simplify right side
   7,621.98x = 78,967,983.62
5. Step 5: Solve for x
   x = 78,967,983.62/7,621.98
6. Step 6: Final answer
   x = 10,360.56