Finding the Fourth Proportional to 8,976.06, 12,386.55 and 4,997.13

Step by Step Solution

1. Step 1: Write the proportion equation
   8,976.06 : 12,386.55 = 4,997.13 : x
2. Step 2: Convert to fraction form
   8,976.06/12,386.55 = 4,997.13/x
3. Step 3: Cross multiply
   8,976.06x = 12,386.55 × 4,997.13
4. Step 4: Simplify right side
   8,976.06x = 61,897,200.60
5. Step 5: Solve for x
   x = 61,897,200.60/8,976.06
6. Step 6: Final answer
   x = 6,895.81