Finding the Fourth Proportional to 14,651.71, 21,978.91 and 4,791.04

Step by Step Solution

1. Step 1: Write the proportion equation
   14,651.71 : 21,978.91 = 4,791.04 : x
2. Step 2: Convert to fraction form
   14,651.71/21,978.91 = 4,791.04/x
3. Step 3: Cross multiply
   14,651.71x = 21,978.91 × 4,791.04
4. Step 4: Simplify right side
   14,651.71x = 105,301,715.09
5. Step 5: Solve for x
   x = 105,301,715.09/14,651.71
6. Step 6: Final answer
   x = 7,186.99