Finding the Fourth Proportional to 80,279.86, 110,804.61 and 53,423.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,279.86 : 110,804.61 = 53,423.50 : x
2. Step 2: Convert to fraction form
   80,279.86/110,804.61 = 53,423.50/x
3. Step 3: Cross multiply
   80,279.86x = 110,804.61 × 53,423.50
4. Step 4: Simplify right side
   80,279.86x = 5,919,570,082.34
5. Step 5: Solve for x
   x = 5,919,570,082.34/80,279.86
6. Step 6: Final answer
   x = 73,736.68