Finding the Fourth Proportional to 8,868.02, 12,237.89 and 4,889.05

Step by Step Solution

1. Step 1: Write the proportion equation
   8,868.02 : 12,237.89 = 4,889.05 : x
2. Step 2: Convert to fraction form
   8,868.02/12,237.89 = 4,889.05/x
3. Step 3: Cross multiply
   8,868.02x = 12,237.89 × 4,889.05
4. Step 4: Simplify right side
   8,868.02x = 59,831,656.10
5. Step 5: Solve for x
   x = 59,831,656.10/8,868.02
6. Step 6: Final answer
   x = 6,746.90