Finding the Fourth Proportional to 13,234.78, 18,263.89 and 7,184.87

Step by Step Solution

1. Step 1: Write the proportion equation
   13,234.78 : 18,263.89 = 7,184.87 : x
2. Step 2: Convert to fraction form
   13,234.78/18,263.89 = 7,184.87/x
3. Step 3: Cross multiply
   13,234.78x = 18,263.89 × 7,184.87
4. Step 4: Simplify right side
   13,234.78x = 131,223,675.34
5. Step 5: Solve for x
   x = 131,223,675.34/13,234.78
6. Step 6: Final answer
   x = 9,915.06