Finding the Fourth Proportional to 12,363.31, 18,549.71 and 7,436.44

Step by Step Solution

1. Step 1: Write the proportion equation
   12,363.31 : 18,549.71 = 7,436.44 : x
2. Step 2: Convert to fraction form
   12,363.31/18,549.71 = 7,436.44/x
3. Step 3: Cross multiply
   12,363.31x = 18,549.71 × 7,436.44
4. Step 4: Simplify right side
   12,363.31x = 137,943,768.25
5. Step 5: Solve for x
   x = 137,943,768.25/12,363.31
6. Step 6: Final answer
   x = 11,157.51