Finding the Fourth Proportional to 72,074.38, 99,462.45 and 40,250.83

Step by Step Solution

1. Step 1: Write the proportion equation
   72,074.38 : 99,462.45 = 40,250.83 : x
2. Step 2: Convert to fraction form
   72,074.38/99,462.45 = 40,250.83/x
3. Step 3: Cross multiply
   72,074.38x = 99,462.45 × 40,250.83
4. Step 4: Simplify right side
   72,074.38x = 4,003,446,166.33
5. Step 5: Solve for x
   x = 4,003,446,166.33/72,074.38
6. Step 6: Final answer
   x = 55,546.04