Finding the Fourth Proportional to 10,153.04, 14,011.50 and 5,615.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,153.04 : 14,011.50 = 5,615.78 : x
2. Step 2: Convert to fraction form
   10,153.04/14,011.50 = 5,615.78/x
3. Step 3: Cross multiply
   10,153.04x = 14,011.50 × 5,615.78
4. Step 4: Simplify right side
   10,153.04x = 78,685,501.47
5. Step 5: Solve for x
   x = 78,685,501.47/10,153.04
6. Step 6: Final answer
   x = 7,749.94