Finding the Fourth Proportional to 101,446.56, 139,987.44 and 56,123.82

Step by Step Solution

1. Step 1: Write the proportion equation
   101,446.56 : 139,987.44 = 56,123.82 : x
2. Step 2: Convert to fraction form
   101,446.56/139,987.44 = 56,123.82/x
3. Step 3: Cross multiply
   101,446.56x = 139,987.44 × 56,123.82
4. Step 4: Simplify right side
   101,446.56x = 7,856,629,884.82
5. Step 5: Solve for x
   x = 7,856,629,884.82/101,446.56
6. Step 6: Final answer
   x = 77,446.00