Finding the Fourth Proportional to 42,884.72, 64,425.96 and 41,113.28

Step by Step Solution

1. Step 1: Write the proportion equation
   42,884.72 : 64,425.96 = 41,113.28 : x
2. Step 2: Convert to fraction form
   42,884.72/64,425.96 = 41,113.28/x
3. Step 3: Cross multiply
   42,884.72x = 64,425.96 × 41,113.28
4. Step 4: Simplify right side
   42,884.72x = 2,648,762,532.75
5. Step 5: Solve for x
   x = 2,648,762,532.75/42,884.72
6. Step 6: Final answer
   x = 61,764.72