Finding the Fourth Proportional to 42,091.72, 58,107.60 and 26,181.28

Step by Step Solution

1. Step 1: Write the proportion equation
   42,091.72 : 58,107.60 = 26,181.28 : x
2. Step 2: Convert to fraction form
   42,091.72/58,107.60 = 26,181.28/x
3. Step 3: Cross multiply
   42,091.72x = 58,107.60 × 26,181.28
4. Step 4: Simplify right side
   42,091.72x = 1,521,331,345.73
5. Step 5: Solve for x
   x = 1,521,331,345.73/42,091.72
6. Step 6: Final answer
   x = 36,143.24