Finding the Fourth Proportional to 22,056.66, 30,429.54 and 12,620.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,056.66 : 30,429.54 = 12,620.16 : x
2. Step 2: Convert to fraction form
   22,056.66/30,429.54 = 12,620.16/x
3. Step 3: Cross multiply
   22,056.66x = 30,429.54 × 12,620.16
4. Step 4: Simplify right side
   22,056.66x = 384,025,663.53
5. Step 5: Solve for x
   x = 384,025,663.53/22,056.66
6. Step 6: Final answer
   x = 17,410.87