Finding the Fourth Proportional to 10,503.78, 14,495.12 and 5,788.03

Step by Step Solution

1. Step 1: Write the proportion equation
   10,503.78 : 14,495.12 = 5,788.03 : x
2. Step 2: Convert to fraction form
   10,503.78/14,495.12 = 5,788.03/x
3. Step 3: Cross multiply
   10,503.78x = 14,495.12 × 5,788.03
4. Step 4: Simplify right side
   10,503.78x = 83,898,116.94
5. Step 5: Solve for x
   x = 83,898,116.94/10,503.78
6. Step 6: Final answer
   x = 7,987.42