Finding the Fourth Proportional to 22,889.58, 31,585.01 and 12,816.62

Step by Step Solution

1. Step 1: Write the proportion equation
   22,889.58 : 31,585.01 = 12,816.62 : x
2. Step 2: Convert to fraction form
   22,889.58/31,585.01 = 12,816.62/x
3. Step 3: Cross multiply
   22,889.58x = 31,585.01 × 12,816.62
4. Step 4: Simplify right side
   22,889.58x = 404,813,070.87
5. Step 5: Solve for x
   x = 404,813,070.87/22,889.58
6. Step 6: Final answer
   x = 17,685.47