Finding the Fourth Proportional to 72,307, 108,348.54 and 50,164.12

Step by Step Solution

1. Step 1: Write the proportion equation
   72,307 : 108,348.54 = 50,164.12 : x
2. Step 2: Convert to fraction form
   72,307/108,348.54 = 50,164.12/x
3. Step 3: Cross multiply
   72,307x = 108,348.54 × 50,164.12
4. Step 4: Simplify right side
   72,307x = 5,435,209,162.38
5. Step 5: Solve for x
   x = 5,435,209,162.38/72,307
6. Step 6: Final answer
   x = 75,168.51