Finding the Fourth Proportional to 28,111.24, 42,079.38 and 17,701.12

Step by Step Solution

1. Step 1: Write the proportion equation
   28,111.24 : 42,079.38 = 17,701.12 : x
2. Step 2: Convert to fraction form
   28,111.24/42,079.38 = 17,701.12/x
3. Step 3: Cross multiply
   28,111.24x = 42,079.38 × 17,701.12
4. Step 4: Simplify right side
   28,111.24x = 744,852,154.91
5. Step 5: Solve for x
   x = 744,852,154.91/28,111.24
6. Step 6: Final answer
   x = 26,496.60