Finding the Fourth Proportional to 55,559, 76,671.42 and 30,408.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,559 : 76,671.42 = 30,408.50 : x
2. Step 2: Convert to fraction form
   55,559/76,671.42 = 30,408.50/x
3. Step 3: Cross multiply
   55,559x = 76,671.42 × 30,408.50
4. Step 4: Simplify right side
   55,559x = 2,331,462,875.07
5. Step 5: Solve for x
   x = 2,331,462,875.07/55,559
6. Step 6: Final answer
   x = 41,963.73