Finding the Fourth Proportional to 8,762.01, 12,091.59 and 5,618.21

Step by Step Solution

1. Step 1: Write the proportion equation
   8,762.01 : 12,091.59 = 5,618.21 : x
2. Step 2: Convert to fraction form
   8,762.01/12,091.59 = 5,618.21/x
3. Step 3: Cross multiply
   8,762.01x = 12,091.59 × 5,618.21
4. Step 4: Simplify right side
   8,762.01x = 67,933,031.40
5. Step 5: Solve for x
   x = 67,933,031.40/8,762.01
6. Step 6: Final answer
   x = 7,753.13