Finding the Fourth Proportional to 12,093.18, 18,141.21 and 7,411.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,093.18 : 18,141.21 = 7,411.02 : x
2. Step 2: Convert to fraction form
   12,093.18/18,141.21 = 7,411.02/x
3. Step 3: Cross multiply
   12,093.18x = 18,141.21 × 7,411.02
4. Step 4: Simplify right side
   12,093.18x = 134,444,870.13
5. Step 5: Solve for x
   x = 134,444,870.13/12,093.18
6. Step 6: Final answer
   x = 11,117.41