Finding the Fourth Proportional to 12,855.50, 17,738.70 and 7,552.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,855.50 : 17,738.70 = 7,552.02 : x
2. Step 2: Convert to fraction form
   12,855.50/17,738.70 = 7,552.02/x
3. Step 3: Cross multiply
   12,855.50x = 17,738.70 × 7,552.02
4. Step 4: Simplify right side
   12,855.50x = 133,963,017.17
5. Step 5: Solve for x
   x = 133,963,017.17/12,855.50
6. Step 6: Final answer
   x = 10,420.68