Finding the Fourth Proportional to 42,506.83, 58,566.41 and 28,142.29

Step by Step Solution

1. Step 1: Write the proportion equation
   42,506.83 : 58,566.41 = 28,142.29 : x
2. Step 2: Convert to fraction form
   42,506.83/58,566.41 = 28,142.29/x
3. Step 3: Cross multiply
   42,506.83x = 58,566.41 × 28,142.29
4. Step 4: Simplify right side
   42,506.83x = 1,648,192,753.77
5. Step 5: Solve for x
   x = 1,648,192,753.77/42,506.83
6. Step 6: Final answer
   x = 38,774.77