Finding the Fourth Proportional to 22,100.34, 30,499.83 and 12,670.32

Step by Step Solution

1. Step 1: Write the proportion equation
   22,100.34 : 30,499.83 = 12,670.32 : x
2. Step 2: Convert to fraction form
   22,100.34/30,499.83 = 12,670.32/x
3. Step 3: Cross multiply
   22,100.34x = 30,499.83 × 12,670.32
4. Step 4: Simplify right side
   22,100.34x = 386,442,606.05
5. Step 5: Solve for x
   x = 386,442,606.05/22,100.34
6. Step 6: Final answer
   x = 17,485.82