Finding the Fourth Proportional to 22,088.91, 30,483.54 and 12,659.30

Step by Step Solution

1. Step 1: Write the proportion equation
   22,088.91 : 30,483.54 = 12,659.30 : x
2. Step 2: Convert to fraction form
   22,088.91/30,483.54 = 12,659.30/x
3. Step 3: Cross multiply
   22,088.91x = 30,483.54 × 12,659.30
4. Step 4: Simplify right side
   22,088.91x = 385,900,277.92
5. Step 5: Solve for x
   x = 385,900,277.92/22,088.91
6. Step 6: Final answer
   x = 17,470.32