Finding the Fourth Proportional to 9,400.08, 12,971.16 and 5,622.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,400.08 : 12,971.16 = 5,622.50 : x
2. Step 2: Convert to fraction form
   9,400.08/12,971.16 = 5,622.50/x
3. Step 3: Cross multiply
   9,400.08x = 12,971.16 × 5,622.50
4. Step 4: Simplify right side
   9,400.08x = 72,930,347.10
5. Step 5: Solve for x
   x = 72,930,347.10/9,400.08
6. Step 6: Final answer
   x = 7,758.48