Finding the Fourth Proportional to 22,904.72, 31,607.86 and 13,346.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,904.72 : 31,607.86 = 13,346.72 : x
2. Step 2: Convert to fraction form
   22,904.72/31,607.86 = 13,346.72/x
3. Step 3: Cross multiply
   22,904.72x = 31,607.86 × 13,346.72
4. Step 4: Simplify right side
   22,904.72x = 421,861,190.49
5. Step 5: Solve for x
   x = 421,861,190.49/22,904.72
6. Step 6: Final answer
   x = 18,418.09