Finding the Fourth Proportional to 22,858.16, 31,527.32 and 16,136.78

Step by Step Solution

1. Step 1: Write the proportion equation
   22,858.16 : 31,527.32 = 16,136.78 : x
2. Step 2: Convert to fraction form
   22,858.16/31,527.32 = 16,136.78/x
3. Step 3: Cross multiply
   22,858.16x = 31,527.32 × 16,136.78
4. Step 4: Simplify right side
   22,858.16x = 508,749,426.83
5. Step 5: Solve for x
   x = 508,749,426.83/22,858.16
6. Step 6: Final answer
   x = 22,256.80