Finding the Fourth Proportional to 27,485.98, 37,931.58 and 16,155.31

Step by Step Solution

1. Step 1: Write the proportion equation
   27,485.98 : 37,931.58 = 16,155.31 : x
2. Step 2: Convert to fraction form
   27,485.98/37,931.58 = 16,155.31/x
3. Step 3: Cross multiply
   27,485.98x = 37,931.58 × 16,155.31
4. Step 4: Simplify right side
   27,485.98x = 612,796,433.69
5. Step 5: Solve for x
   x = 612,796,433.69/27,485.98
6. Step 6: Final answer
   x = 22,294.87