Finding the Fourth Proportional to 22,071.21, 33,106.86 and 5,431.56

Step by Step Solution

1. Step 1: Write the proportion equation
   22,071.21 : 33,106.86 = 5,431.56 : x
2. Step 2: Convert to fraction form
   22,071.21/33,106.86 = 5,431.56/x
3. Step 3: Cross multiply
   22,071.21x = 33,106.86 × 5,431.56
4. Step 4: Simplify right side
   22,071.21x = 179,821,896.50
5. Step 5: Solve for x
   x = 179,821,896.50/22,071.21
6. Step 6: Final answer
   x = 8,147.35