Finding the Fourth Proportional to 15,978.24, 23,961.18 and 4,881.48

Step by Step Solution

1. Step 1: Write the proportion equation
   15,978.24 : 23,961.18 = 4,881.48 : x
2. Step 2: Convert to fraction form
   15,978.24/23,961.18 = 4,881.48/x
3. Step 3: Cross multiply
   15,978.24x = 23,961.18 × 4,881.48
4. Step 4: Simplify right side
   15,978.24x = 116,966,020.95
5. Step 5: Solve for x
   x = 116,966,020.95/15,978.24
6. Step 6: Final answer
   x = 7,320.33