Finding the Fourth Proportional to 42,665.75, 63,996.23 and 13,083.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,665.75 : 63,996.23 = 13,083.50 : x
2. Step 2: Convert to fraction form
   42,665.75/63,996.23 = 13,083.50/x
3. Step 3: Cross multiply
   42,665.75x = 63,996.23 × 13,083.50
4. Step 4: Simplify right side
   42,665.75x = 837,294,794.31
5. Step 5: Solve for x
   x = 837,294,794.31/42,665.75
6. Step 6: Final answer
   x = 19,624.52