Finding the Fourth Proportional to 14,055.29, 21,080.81 and 5,288.16

Step by Step Solution

1. Step 1: Write the proportion equation
   14,055.29 : 21,080.81 = 5,288.16 : x
2. Step 2: Convert to fraction form
   14,055.29/21,080.81 = 5,288.16/x
3. Step 3: Cross multiply
   14,055.29x = 21,080.81 × 5,288.16
4. Step 4: Simplify right side
   14,055.29x = 111,478,696.21
5. Step 5: Solve for x
   x = 111,478,696.21/14,055.29
6. Step 6: Final answer
   x = 7,931.44