Finding the Fourth Proportional to 30,574.22, 42,173 and 22,088.82

Step by Step Solution

1. Step 1: Write the proportion equation
   30,574.22 : 42,173 = 22,088.82 : x
2. Step 2: Convert to fraction form
   30,574.22/42,173 = 22,088.82/x
3. Step 3: Cross multiply
   30,574.22x = 42,173 × 22,088.82
4. Step 4: Simplify right side
   30,574.22x = 931,551,805.86
5. Step 5: Solve for x
   x = 931,551,805.86/30,574.22
6. Step 6: Final answer
   x = 30,468.54