Finding the Fourth Proportional to 7,624.48, 10,458.80 and 7,555.36

Step by Step Solution

1. Step 1: Write the proportion equation
   7,624.48 : 10,458.80 = 7,555.36 : x
2. Step 2: Convert to fraction form
   7,624.48/10,458.80 = 7,555.36/x
3. Step 3: Cross multiply
   7,624.48x = 10,458.80 × 7,555.36
4. Step 4: Simplify right side
   7,624.48x = 79,019,999.17
5. Step 5: Solve for x
   x = 79,019,999.17/7,624.48
6. Step 6: Final answer
   x = 10,363.99