Finding the Fourth Proportional to 12,488.13, 18,734.01 and 4,698.76

Step by Step Solution

1. Step 1: Write the proportion equation
   12,488.13 : 18,734.01 = 4,698.76 : x
2. Step 2: Convert to fraction form
   12,488.13/18,734.01 = 4,698.76/x
3. Step 3: Cross multiply
   12,488.13x = 18,734.01 × 4,698.76
4. Step 4: Simplify right side
   12,488.13x = 88,026,616.83
5. Step 5: Solve for x
   x = 88,026,616.83/12,488.13
6. Step 6: Final answer
   x = 7,048.82