Finding the Fourth Proportional to 8,922.25, 12,312.71 and 5,196.25

Step by Step Solution

1. Step 1: Write the proportion equation
   8,922.25 : 12,312.71 = 5,196.25 : x
2. Step 2: Convert to fraction form
   8,922.25/12,312.71 = 5,196.25/x
3. Step 3: Cross multiply
   8,922.25x = 12,312.71 × 5,196.25
4. Step 4: Simplify right side
   8,922.25x = 63,979,919.34
5. Step 5: Solve for x
   x = 63,979,919.34/8,922.25
6. Step 6: Final answer
   x = 7,170.83