Finding the Fourth Proportional to 101,225.86, 151,840.60 and 31,105.78

Step by Step Solution

1. Step 1: Write the proportion equation
   101,225.86 : 151,840.60 = 31,105.78 : x
2. Step 2: Convert to fraction form
   101,225.86/151,840.60 = 31,105.78/x
3. Step 3: Cross multiply
   101,225.86x = 151,840.60 × 31,105.78
4. Step 4: Simplify right side
   101,225.86x = 4,723,120,298.67
5. Step 5: Solve for x
   x = 4,723,120,298.67/101,225.86
6. Step 6: Final answer
   x = 46,659.23