Finding the Fourth Proportional to 10,520.40, 14,518.20 and 5,804.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,520.40 : 14,518.20 = 5,804.72 : x
2. Step 2: Convert to fraction form
   10,520.40/14,518.20 = 5,804.72/x
3. Step 3: Cross multiply
   10,520.40x = 14,518.20 × 5,804.72
4. Step 4: Simplify right side
   10,520.40x = 84,274,085.90
5. Step 5: Solve for x
   x = 84,274,085.90/10,520.40
6. Step 6: Final answer
   x = 8,010.54