Finding the Fourth Proportional to 12,752.21, 17,599.69 and 7,164.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,752.21 : 17,599.69 = 7,164.29 : x
2. Step 2: Convert to fraction form
   12,752.21/17,599.69 = 7,164.29/x
3. Step 3: Cross multiply
   12,752.21x = 17,599.69 × 7,164.29
4. Step 4: Simplify right side
   12,752.21x = 126,089,336.41
5. Step 5: Solve for x
   x = 126,089,336.41/12,752.21
6. Step 6: Final answer
   x = 9,887.64