Finding the Fourth Proportional to 10,172.99, 14,038.57 and 5,696.70

Step by Step Solution

1. Step 1: Write the proportion equation
   10,172.99 : 14,038.57 = 5,696.70 : x
2. Step 2: Convert to fraction form
   10,172.99/14,038.57 = 5,696.70/x
3. Step 3: Cross multiply
   10,172.99x = 14,038.57 × 5,696.70
4. Step 4: Simplify right side
   10,172.99x = 79,973,562.60
5. Step 5: Solve for x
   x = 79,973,562.60/10,172.99
6. Step 6: Final answer
   x = 7,861.36