Finding the Fourth Proportional to 72,225.56, 99,676.49 and 40,404.71

Step by Step Solution

1. Step 1: Write the proportion equation
   72,225.56 : 99,676.49 = 40,404.71 : x
2. Step 2: Convert to fraction form
   72,225.56/99,676.49 = 40,404.71/x
3. Step 3: Cross multiply
   72,225.56x = 99,676.49 × 40,404.71
4. Step 4: Simplify right side
   72,225.56x = 4,027,398,971.86
5. Step 5: Solve for x
   x = 4,027,398,971.86/72,225.56
6. Step 6: Final answer
   x = 55,761.41