Finding the Fourth Proportional to 8,772.82, 12,100.05 and 5,790.94

Step by Step Solution

1. Step 1: Write the proportion equation
   8,772.82 : 12,100.05 = 5,790.94 : x
2. Step 2: Convert to fraction form
   8,772.82/12,100.05 = 5,790.94/x
3. Step 3: Cross multiply
   8,772.82x = 12,100.05 × 5,790.94
4. Step 4: Simplify right side
   8,772.82x = 70,070,663.55
5. Step 5: Solve for x
   x = 70,070,663.55/8,772.82
6. Step 6: Final answer
   x = 7,987.25