Finding the Fourth Proportional to 72,402.12, 108,536.36 and 50,225.96

Step by Step Solution

1. Step 1: Write the proportion equation
   72,402.12 : 108,536.36 = 50,225.96 : x
2. Step 2: Convert to fraction form
   72,402.12/108,536.36 = 50,225.96/x
3. Step 3: Cross multiply
   72,402.12x = 108,536.36 × 50,225.96
4. Step 4: Simplify right side
   72,402.12x = 5,451,342,875.91
5. Step 5: Solve for x
   x = 5,451,342,875.91/72,402.12
6. Step 6: Final answer
   x = 75,292.59