Finding the Fourth Proportional to 8,870.01, 12,240.59 and 4,891.13

Step by Step Solution

1. Step 1: Write the proportion equation
   8,870.01 : 12,240.59 = 4,891.13 : x
2. Step 2: Convert to fraction form
   8,870.01/12,240.59 = 4,891.13/x
3. Step 3: Cross multiply
   8,870.01x = 12,240.59 × 4,891.13
4. Step 4: Simplify right side
   8,870.01x = 59,870,255.76
5. Step 5: Solve for x
   x = 59,870,255.76/8,870.01
6. Step 6: Final answer
   x = 6,749.74