Finding the Fourth Proportional to 42,142.88, 58,154.64 and 23,279.60

Step by Step Solution

1. Step 1: Write the proportion equation
   42,142.88 : 58,154.64 = 23,279.60 : x
2. Step 2: Convert to fraction form
   42,142.88/58,154.64 = 23,279.60/x
3. Step 3: Cross multiply
   42,142.88x = 58,154.64 × 23,279.60
4. Step 4: Simplify right side
   42,142.88x = 1,353,816,757.34
5. Step 5: Solve for x
   x = 1,353,816,757.34/42,142.88
6. Step 6: Final answer
   x = 32,124.45