Finding the Fourth Proportional to 28,054.96, 42,059.15 and 11,422.82

Step by Step Solution

1. Step 1: Write the proportion equation
   28,054.96 : 42,059.15 = 11,422.82 : x
2. Step 2: Convert to fraction form
   28,054.96/42,059.15 = 11,422.82/x
3. Step 3: Cross multiply
   28,054.96x = 42,059.15 × 11,422.82
4. Step 4: Simplify right side
   28,054.96x = 480,434,042.69
5. Step 5: Solve for x
   x = 480,434,042.69/28,054.96
6. Step 6: Final answer
   x = 17,124.75