Finding the Fourth Proportional to 7,042.32, 10,563.36 and 2,111.88

Step by Step Solution

1. Step 1: Write the proportion equation
   7,042.32 : 10,563.36 = 2,111.88 : x
2. Step 2: Convert to fraction form
   7,042.32/10,563.36 = 2,111.88/x
3. Step 3: Cross multiply
   7,042.32x = 10,563.36 × 2,111.88
4. Step 4: Simplify right side
   7,042.32x = 22,308,548.72
5. Step 5: Solve for x
   x = 22,308,548.72/7,042.32
6. Step 6: Final answer
   x = 3,167.78