Finding the Fourth Proportional to 42,428.28, 58,553.10 and 23,565

Step by Step Solution

1. Step 1: Write the proportion equation
   42,428.28 : 58,553.10 = 23,565 : x
2. Step 2: Convert to fraction form
   42,428.28/58,553.10 = 23,565/x
3. Step 3: Cross multiply
   42,428.28x = 58,553.10 × 23,565
4. Step 4: Simplify right side
   42,428.28x = 1,379,803,801.50
5. Step 5: Solve for x
   x = 1,379,803,801.50/42,428.28
6. Step 6: Final answer
   x = 32,520.85