Finding the Fourth Proportional to 22,340.30, 30,828.69 and 12,130.93

Step by Step Solution

1. Step 1: Write the proportion equation
   22,340.30 : 30,828.69 = 12,130.93 : x
2. Step 2: Convert to fraction form
   22,340.30/30,828.69 = 12,130.93/x
3. Step 3: Cross multiply
   22,340.30x = 30,828.69 × 12,130.93
4. Step 4: Simplify right side
   22,340.30x = 373,980,673.43
5. Step 5: Solve for x
   x = 373,980,673.43/22,340.30
6. Step 6: Final answer
   x = 16,740.18