Finding the Fourth Proportional to 16,886.77, 25,302.47 and 5,787.47

Step by Step Solution

1. Step 1: Write the proportion equation
   16,886.77 : 25,302.47 = 5,787.47 : x
2. Step 2: Convert to fraction form
   16,886.77/25,302.47 = 5,787.47/x
3. Step 3: Cross multiply
   16,886.77x = 25,302.47 × 5,787.47
4. Step 4: Simplify right side
   16,886.77x = 146,437,300.52
5. Step 5: Solve for x
   x = 146,437,300.52/16,886.77
6. Step 6: Final answer
   x = 8,671.72