Finding the Fourth Proportional to 42,381.72, 58,498.20 and 26,456.58

Step by Step Solution

1. Step 1: Write the proportion equation
   42,381.72 : 58,498.20 = 26,456.58 : x
2. Step 2: Convert to fraction form
   42,381.72/58,498.20 = 26,456.58/x
3. Step 3: Cross multiply
   42,381.72x = 58,498.20 × 26,456.58
4. Step 4: Simplify right side
   42,381.72x = 1,547,662,308.16
5. Step 5: Solve for x
   x = 1,547,662,308.16/42,381.72
6. Step 6: Final answer
   x = 36,517.21