Finding the Fourth Proportional to 13,061.64, 18,024.82 and 7,396.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,061.64 : 18,024.82 = 7,396.30 : x
2. Step 2: Convert to fraction form
   13,061.64/18,024.82 = 7,396.30/x
3. Step 3: Cross multiply
   13,061.64x = 18,024.82 × 7,396.30
4. Step 4: Simplify right side
   13,061.64x = 133,316,912.61
5. Step 5: Solve for x
   x = 133,316,912.61/13,061.64
6. Step 6: Final answer
   x = 10,206.75