Finding the Fourth Proportional to 28,693.13, 42,959.86 and 14,622.82

Step by Step Solution

1. Step 1: Write the proportion equation
   28,693.13 : 42,959.86 = 14,622.82 : x
2. Step 2: Convert to fraction form
   28,693.13/42,959.86 = 14,622.82/x
3. Step 3: Cross multiply
   28,693.13x = 42,959.86 × 14,622.82
4. Step 4: Simplify right side
   28,693.13x = 628,194,300.01
5. Step 5: Solve for x
   x = 628,194,300.01/28,693.13
6. Step 6: Final answer
   x = 21,893.54