Finding the Fourth Proportional to 56,626.05, 85,036.28 and 40,102.05

Step by Step Solution

1. Step 1: Write the proportion equation
   56,626.05 : 85,036.28 = 40,102.05 : x
2. Step 2: Convert to fraction form
   56,626.05/85,036.28 = 40,102.05/x
3. Step 3: Cross multiply
   56,626.05x = 85,036.28 × 40,102.05
4. Step 4: Simplify right side
   56,626.05x = 3,410,128,951.86
5. Step 5: Solve for x
   x = 3,410,128,951.86/56,626.05
6. Step 6: Final answer
   x = 60,221.91