Finding the Fourth Proportional to 22,071.47, 30,457.99 and 12,512.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,071.47 : 30,457.99 = 12,512.25 : x
2. Step 2: Convert to fraction form
   22,071.47/30,457.99 = 12,512.25/x
3. Step 3: Cross multiply
   22,071.47x = 30,457.99 × 12,512.25
4. Step 4: Simplify right side
   22,071.47x = 381,097,954.10
5. Step 5: Solve for x
   x = 381,097,954.10/22,071.47
6. Step 6: Final answer
   x = 17,266.54