Finding the Fourth Proportional to 8,809.34, 12,157.01 and 5,271.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,809.34 : 12,157.01 = 5,271.86 : x
2. Step 2: Convert to fraction form
   8,809.34/12,157.01 = 5,271.86/x
3. Step 3: Cross multiply
   8,809.34x = 12,157.01 × 5,271.86
4. Step 4: Simplify right side
   8,809.34x = 64,089,967.59
5. Step 5: Solve for x
   x = 64,089,967.59/8,809.34
6. Step 6: Final answer
   x = 7,275.23