Finding the Fourth Proportional to 8,886.18, 12,263.12 and 4,907.55

Step by Step Solution

1. Step 1: Write the proportion equation
   8,886.18 : 12,263.12 = 4,907.55 : x
2. Step 2: Convert to fraction form
   8,886.18/12,263.12 = 4,907.55/x
3. Step 3: Cross multiply
   8,886.18x = 12,263.12 × 4,907.55
4. Step 4: Simplify right side
   8,886.18x = 60,181,874.56
5. Step 5: Solve for x
   x = 60,181,874.56/8,886.18
6. Step 6: Final answer
   x = 6,772.52