Finding the Fourth Proportional to 9,140.27, 12,621.20 and 5,788.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,140.27 : 12,621.20 = 5,788.98 : x
2. Step 2: Convert to fraction form
   9,140.27/12,621.20 = 5,788.98/x
3. Step 3: Cross multiply
   9,140.27x = 12,621.20 × 5,788.98
4. Step 4: Simplify right side
   9,140.27x = 73,063,845.43
5. Step 5: Solve for x
   x = 73,063,845.43/9,140.27
6. Step 6: Final answer
   x = 7,993.62