Finding the Fourth Proportional to 12,109.02, 18,157.68 and 5,087.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,109.02 : 18,157.68 = 5,087.04 : x
2. Step 2: Convert to fraction form
   12,109.02/18,157.68 = 5,087.04/x
3. Step 3: Cross multiply
   12,109.02x = 18,157.68 × 5,087.04
4. Step 4: Simplify right side
   12,109.02x = 92,368,844.47
5. Step 5: Solve for x
   x = 92,368,844.47/12,109.02
6. Step 6: Final answer
   x = 7,628.10