Finding the Fourth Proportional to 42,478.50, 58,620.40 and 23,615.63

Step by Step Solution

1. Step 1: Write the proportion equation
   42,478.50 : 58,620.40 = 23,615.63 : x
2. Step 2: Convert to fraction form
   42,478.50/58,620.40 = 23,615.63/x
3. Step 3: Cross multiply
   42,478.50x = 58,620.40 × 23,615.63
4. Step 4: Simplify right side
   42,478.50x = 1,384,357,383.75
5. Step 5: Solve for x
   x = 1,384,357,383.75/42,478.50
6. Step 6: Final answer
   x = 32,589.60