Finding the Fourth Proportional to 101,229.35, 139,690.37 and 60,956.15

Step by Step Solution

1. Step 1: Write the proportion equation
   101,229.35 : 139,690.37 = 60,956.15 : x
2. Step 2: Convert to fraction form
   101,229.35/139,690.37 = 60,956.15/x
3. Step 3: Cross multiply
   101,229.35x = 139,690.37 × 60,956.15
4. Step 4: Simplify right side
   101,229.35x = 8,514,986,601.21
5. Step 5: Solve for x
   x = 8,514,986,601.21/101,229.35
6. Step 6: Final answer
   x = 84,115.79