Finding the Fourth Proportional to 8,910.51, 12,296.56 and 4,931.53

Step by Step Solution

1. Step 1: Write the proportion equation
   8,910.51 : 12,296.56 = 4,931.53 : x
2. Step 2: Convert to fraction form
   8,910.51/12,296.56 = 4,931.53/x
3. Step 3: Cross multiply
   8,910.51x = 12,296.56 × 4,931.53
4. Step 4: Simplify right side
   8,910.51x = 60,640,889.88
5. Step 5: Solve for x
   x = 60,640,889.88/8,910.51
6. Step 6: Final answer
   x = 6,805.55