Finding the Fourth Proportional to 12,488.79, 18,733.82 and 4,168.47

Step by Step Solution

1. Step 1: Write the proportion equation
   12,488.79 : 18,733.82 = 4,168.47 : x
2. Step 2: Convert to fraction form
   12,488.79/18,733.82 = 4,168.47/x
3. Step 3: Cross multiply
   12,488.79x = 18,733.82 × 4,168.47
4. Step 4: Simplify right side
   12,488.79x = 78,091,345.81
5. Step 5: Solve for x
   x = 78,091,345.81/12,488.79
6. Step 6: Final answer
   x = 6,252.92