Finding the Fourth Proportional to 42,021.99, 62,978.43 and 17,032.80

Step by Step Solution

1. Step 1: Write the proportion equation
   42,021.99 : 62,978.43 = 17,032.80 : x
2. Step 2: Convert to fraction form
   42,021.99/62,978.43 = 17,032.80/x
3. Step 3: Cross multiply
   42,021.99x = 62,978.43 × 17,032.80
4. Step 4: Simplify right side
   42,021.99x = 1,072,699,002.50
5. Step 5: Solve for x
   x = 1,072,699,002.50/42,021.99
6. Step 6: Final answer
   x = 25,527.09