Finding the Fourth Proportional to 31,136.54, 42,969.64 and 17,709.02

Step by Step Solution

1. Step 1: Write the proportion equation
   31,136.54 : 42,969.64 = 17,709.02 : x
2. Step 2: Convert to fraction form
   31,136.54/42,969.64 = 17,709.02/x
3. Step 3: Cross multiply
   31,136.54x = 42,969.64 × 17,709.02
4. Step 4: Simplify right side
   31,136.54x = 760,950,214.15
5. Step 5: Solve for x
   x = 760,950,214.15/31,136.54
6. Step 6: Final answer
   x = 24,439.14