Finding the Fourth Proportional to 13,111.62, 18,093.41 and 7,445.62

Step by Step Solution

1. Step 1: Write the proportion equation
   13,111.62 : 18,093.41 = 7,445.62 : x
2. Step 2: Convert to fraction form
   13,111.62/18,093.41 = 7,445.62/x
3. Step 3: Cross multiply
   13,111.62x = 18,093.41 × 7,445.62
4. Step 4: Simplify right side
   13,111.62x = 134,716,700.60
5. Step 5: Solve for x
   x = 134,716,700.60/13,111.62
6. Step 6: Final answer
   x = 10,274.60