Finding the Fourth Proportional to 42,221.05, 58,264.58 and 23,101.20

Step by Step Solution

1. Step 1: Write the proportion equation
   42,221.05 : 58,264.58 = 23,101.20 : x
2. Step 2: Convert to fraction form
   42,221.05/58,264.58 = 23,101.20/x
3. Step 3: Cross multiply
   42,221.05x = 58,264.58 × 23,101.20
4. Step 4: Simplify right side
   42,221.05x = 1,345,981,773.25
5. Step 5: Solve for x
   x = 1,345,981,773.25/42,221.05
6. Step 6: Final answer
   x = 31,879.40