Finding the Fourth Proportional to 101,444.62, 139,992.60 and 56,732.62

Step by Step Solution

1. Step 1: Write the proportion equation
   101,444.62 : 139,992.60 = 56,732.62 : x
2. Step 2: Convert to fraction form
   101,444.62/139,992.60 = 56,732.62/x
3. Step 3: Cross multiply
   101,444.62x = 139,992.60 × 56,732.62
4. Step 4: Simplify right side
   101,444.62x = 7,942,146,978.61
5. Step 5: Solve for x
   x = 7,942,146,978.61/101,444.62
6. Step 6: Final answer
   x = 78,290.47