Finding the Fourth Proportional to 42,320, 58,401.60 and 23,460

Step by Step Solution

1. Step 1: Write the proportion equation
   42,320 : 58,401.60 = 23,460 : x
2. Step 2: Convert to fraction form
   42,320/58,401.60 = 23,460/x
3. Step 3: Cross multiply
   42,320x = 58,401.60 × 23,460
4. Step 4: Simplify right side
   42,320x = 1,370,101,536
5. Step 5: Solve for x
   x = 1,370,101,536/42,320
6. Step 6: Final answer
   x = 32,374.80