Finding the Fourth Proportional to 10,307.14, 14,223.78 and 5,591.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,307.14 : 14,223.78 = 5,591.32 : x
2. Step 2: Convert to fraction form
   10,307.14/14,223.78 = 5,591.32/x
3. Step 3: Cross multiply
   10,307.14x = 14,223.78 × 5,591.32
4. Step 4: Simplify right side
   10,307.14x = 79,529,705.59
5. Step 5: Solve for x
   x = 79,529,705.59/10,307.14
6. Step 6: Final answer
   x = 7,715.98