Finding the Fourth Proportional to 22,088.32, 30,486.32 and 12,656.88

Step by Step Solution

1. Step 1: Write the proportion equation
   22,088.32 : 30,486.32 = 12,656.88 : x
2. Step 2: Convert to fraction form
   22,088.32/30,486.32 = 12,656.88/x
3. Step 3: Cross multiply
   22,088.32x = 30,486.32 × 12,656.88
4. Step 4: Simplify right side
   22,088.32x = 385,861,835.00
5. Step 5: Solve for x
   x = 385,861,835.00/22,088.32
6. Step 6: Final answer
   x = 17,469.04