Finding the Fourth Proportional to 79,287.40, 109,421.67 and 52,382.71

Step by Step Solution

1. Step 1: Write the proportion equation
   79,287.40 : 109,421.67 = 52,382.71 : x
2. Step 2: Convert to fraction form
   79,287.40/109,421.67 = 52,382.71/x
3. Step 3: Cross multiply
   79,287.40x = 109,421.67 × 52,382.71
4. Step 4: Simplify right side
   79,287.40x = 5,731,803,607.33
5. Step 5: Solve for x
   x = 5,731,803,607.33/79,287.40
6. Step 6: Final answer
   x = 72,291.48