Finding the Fourth Proportional to 12,498.72, 18,750.78 and 4,707.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,498.72 : 18,750.78 = 4,707.52 : x
2. Step 2: Convert to fraction form
   12,498.72/18,750.78 = 4,707.52/x
3. Step 3: Cross multiply
   12,498.72x = 18,750.78 × 4,707.52
4. Step 4: Simplify right side
   12,498.72x = 88,269,671.87
5. Step 5: Solve for x
   x = 88,269,671.87/12,498.72
6. Step 6: Final answer
   x = 7,062.30