Finding the Fourth Proportional to 12,499.59, 18,758.62 and 5,925.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,499.59 : 18,758.62 = 5,925.80 : x
2. Step 2: Convert to fraction form
   12,499.59/18,758.62 = 5,925.80/x
3. Step 3: Cross multiply
   12,499.59x = 18,758.62 × 5,925.80
4. Step 4: Simplify right side
   12,499.59x = 111,159,884.70
5. Step 5: Solve for x
   x = 111,159,884.70/12,499.59
6. Step 6: Final answer
   x = 8,893.08