Finding the Fourth Proportional to 101,754.15, 140,429.35 and 56,446.73

Step by Step Solution

1. Step 1: Write the proportion equation
   101,754.15 : 140,429.35 = 56,446.73 : x
2. Step 2: Convert to fraction form
   101,754.15/140,429.35 = 56,446.73/x
3. Step 3: Cross multiply
   101,754.15x = 140,429.35 × 56,446.73
4. Step 4: Simplify right side
   101,754.15x = 7,926,777,498.55
5. Step 5: Solve for x
   x = 7,926,777,498.55/101,754.15
6. Step 6: Final answer
   x = 77,901.27