Finding the Fourth Proportional to 11,980.16, 17,964.80 and 5,050.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,980.16 : 17,964.80 = 5,050.88 : x
2. Step 2: Convert to fraction form
   11,980.16/17,964.80 = 5,050.88/x
3. Step 3: Cross multiply
   11,980.16x = 17,964.80 × 5,050.88
4. Step 4: Simplify right side
   11,980.16x = 90,738,049.02
5. Step 5: Solve for x
   x = 90,738,049.02/11,980.16
6. Step 6: Final answer
   x = 7,574.03