Finding the Fourth Proportional to 9,980.10, 14,966.55 and 5,048.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,980.10 : 14,966.55 = 5,048.10 : x
2. Step 2: Convert to fraction form
   9,980.10/14,966.55 = 5,048.10/x
3. Step 3: Cross multiply
   9,980.10x = 14,966.55 × 5,048.10
4. Step 4: Simplify right side
   9,980.10x = 75,552,641.06
5. Step 5: Solve for x
   x = 75,552,641.06/9,980.10
6. Step 6: Final answer
   x = 7,570.33