Finding the Fourth Proportional to 8,980.74, 12,387.74 and 7,508.16

Step by Step Solution

1. Step 1: Write the proportion equation
   8,980.74 : 12,387.74 = 7,508.16 : x
2. Step 2: Convert to fraction form
   8,980.74/12,387.74 = 7,508.16/x
3. Step 3: Cross multiply
   8,980.74x = 12,387.74 × 7,508.16
4. Step 4: Simplify right side
   8,980.74x = 93,009,096.42
5. Step 5: Solve for x
   x = 93,009,096.42/8,980.74
6. Step 6: Final answer
   x = 10,356.51