Finding the Fourth Proportional to 42,699.35, 64,052.10 and 16,404.09

Step by Step Solution

1. Step 1: Write the proportion equation
   42,699.35 : 64,052.10 = 16,404.09 : x
2. Step 2: Convert to fraction form
   42,699.35/64,052.10 = 16,404.09/x
3. Step 3: Cross multiply
   42,699.35x = 64,052.10 × 16,404.09
4. Step 4: Simplify right side
   42,699.35x = 1,050,716,413.09
5. Step 5: Solve for x
   x = 1,050,716,413.09/42,699.35
6. Step 6: Final answer
   x = 24,607.32