Finding the Fourth Proportional to 12,078.66, 18,100.85 and 5,051.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,078.66 : 18,100.85 = 5,051.10 : x
2. Step 2: Convert to fraction form
   12,078.66/18,100.85 = 5,051.10/x
3. Step 3: Cross multiply
   12,078.66x = 18,100.85 × 5,051.10
4. Step 4: Simplify right side
   12,078.66x = 91,429,178.18
5. Step 5: Solve for x
   x = 91,429,178.18/12,078.66
6. Step 6: Final answer
   x = 7,569.48