Finding the Fourth Proportional to 73,479, 101,400.78 and 39,944.76

Step by Step Solution

1. Step 1: Write the proportion equation
   73,479 : 101,400.78 = 39,944.76 : x
2. Step 2: Convert to fraction form
   73,479/101,400.78 = 39,944.76/x
3. Step 3: Cross multiply
   73,479x = 101,400.78 × 39,944.76
4. Step 4: Simplify right side
   73,479x = 4,050,429,820.91
5. Step 5: Solve for x
   x = 4,050,429,820.91/73,479
6. Step 6: Final answer
   x = 55,123.64