Finding the Fourth Proportional to 22,071.49, 30,462.69 and 13,124.10

Step by Step Solution

1. Step 1: Write the proportion equation
   22,071.49 : 30,462.69 = 13,124.10 : x
2. Step 2: Convert to fraction form
   22,071.49/30,462.69 = 13,124.10/x
3. Step 3: Cross multiply
   22,071.49x = 30,462.69 × 13,124.10
4. Step 4: Simplify right side
   22,071.49x = 399,795,389.83
5. Step 5: Solve for x
   x = 399,795,389.83/22,071.49
6. Step 6: Final answer
   x = 18,113.66