Finding the Fourth Proportional to 10,504.16, 14,495.28 and 5,788.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,504.16 : 14,495.28 = 5,788.40 : x
2. Step 2: Convert to fraction form
   10,504.16/14,495.28 = 5,788.40/x
3. Step 3: Cross multiply
   10,504.16x = 14,495.28 × 5,788.40
4. Step 4: Simplify right side
   10,504.16x = 83,904,478.75
5. Step 5: Solve for x
   x = 83,904,478.75/10,504.16
6. Step 6: Final answer
   x = 7,987.74