Finding the Fourth Proportional to 42,265.78, 58,326.26 and 23,145.34

Step by Step Solution

1. Step 1: Write the proportion equation
   42,265.78 : 58,326.26 = 23,145.34 : x
2. Step 2: Convert to fraction form
   42,265.78/58,326.26 = 23,145.34/x
3. Step 3: Cross multiply
   42,265.78x = 58,326.26 × 23,145.34
4. Step 4: Simplify right side
   42,265.78x = 1,349,981,118.63
5. Step 5: Solve for x
   x = 1,349,981,118.63/42,265.78
6. Step 6: Final answer
   x = 31,940.29