Finding the Fourth Proportional to 42,635.16, 63,974.34 and 28,755

Step by Step Solution

1. Step 1: Write the proportion equation
   42,635.16 : 63,974.34 = 28,755 : x
2. Step 2: Convert to fraction form
   42,635.16/63,974.34 = 28,755/x
3. Step 3: Cross multiply
   42,635.16x = 63,974.34 × 28,755
4. Step 4: Simplify right side
   42,635.16x = 1,839,582,146.70
5. Step 5: Solve for x
   x = 1,839,582,146.70/42,635.16
6. Step 6: Final answer
   x = 43,147.07