Finding the Fourth Proportional to 10,223.30, 15,302.55 and 7,307.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,223.30 : 15,302.55 = 7,307.30 : x
2. Step 2: Convert to fraction form
   10,223.30/15,302.55 = 7,307.30/x
3. Step 3: Cross multiply
   10,223.30x = 15,302.55 × 7,307.30
4. Step 4: Simplify right side
   10,223.30x = 111,820,323.62
5. Step 5: Solve for x
   x = 111,820,323.62/10,223.30
6. Step 6: Final answer
   x = 10,937.79