Finding the Fourth Proportional to 14,651.68, 21,978.24 and 4,791.12

Step by Step Solution

1. Step 1: Write the proportion equation
   14,651.68 : 21,978.24 = 4,791.12 : x
2. Step 2: Convert to fraction form
   14,651.68/21,978.24 = 4,791.12/x
3. Step 3: Cross multiply
   14,651.68x = 21,978.24 × 4,791.12
4. Step 4: Simplify right side
   14,651.68x = 105,300,385.23
5. Step 5: Solve for x
   x = 105,300,385.23/14,651.68
6. Step 6: Final answer
   x = 7,186.92