Finding the Fourth Proportional to 25,152.37, 37,731.89 and 8,279.80

Step by Step Solution

1. Step 1: Write the proportion equation
   25,152.37 : 37,731.89 = 8,279.80 : x
2. Step 2: Convert to fraction form
   25,152.37/37,731.89 = 8,279.80/x
3. Step 3: Cross multiply
   25,152.37x = 37,731.89 × 8,279.80
4. Step 4: Simplify right side
   25,152.37x = 312,412,429.19
5. Step 5: Solve for x
   x = 312,412,429.19/25,152.37
6. Step 6: Final answer
   x = 12,420.80