Finding the Fourth Proportional to 12,071.63, 18,112.61 and 5,053.29

Step by Step Solution

1. Step 1: Write the proportion equation
   12,071.63 : 18,112.61 = 5,053.29 : x
2. Step 2: Convert to fraction form
   12,071.63/18,112.61 = 5,053.29/x
3. Step 3: Cross multiply
   12,071.63x = 18,112.61 × 5,053.29
4. Step 4: Simplify right side
   12,071.63x = 91,528,215.70
5. Step 5: Solve for x
   x = 91,528,215.70/12,071.63
6. Step 6: Final answer
   x = 7,582.09