Finding the Fourth Proportional to 74,403, 102,676.43 and 40,412.06

Step by Step Solution

1. Step 1: Write the proportion equation
   74,403 : 102,676.43 = 40,412.06 : x
2. Step 2: Convert to fraction form
   74,403/102,676.43 = 40,412.06/x
3. Step 3: Cross multiply
   74,403x = 102,676.43 × 40,412.06
4. Step 4: Simplify right side
   74,403x = 4,149,365,334.30
5. Step 5: Solve for x
   x = 4,149,365,334.30/74,403
6. Step 6: Final answer
   x = 55,768.79