Finding the Fourth Proportional to 101,404.44, 139,934.79 and 56,081.70

Step by Step Solution

1. Step 1: Write the proportion equation
   101,404.44 : 139,934.79 = 56,081.70 : x
2. Step 2: Convert to fraction form
   101,404.44/139,934.79 = 56,081.70/x
3. Step 3: Cross multiply
   101,404.44x = 139,934.79 × 56,081.70
4. Step 4: Simplify right side
   101,404.44x = 7,847,780,912.34
5. Step 5: Solve for x
   x = 7,847,780,912.34/101,404.44
6. Step 6: Final answer
   x = 77,390.90