Finding the Fourth Proportional to 42,522.88, 64,183.72 and 42,522.88

Step by Step Solution

1. Step 1: Write the proportion equation
   42,522.88 : 64,183.72 = 42,522.88 : x
2. Step 2: Convert to fraction form
   42,522.88/64,183.72 = 42,522.88/x
3. Step 3: Cross multiply
   42,522.88x = 64,183.72 × 42,522.88
4. Step 4: Simplify right side
   42,522.88x = 2,729,276,623.51
5. Step 5: Solve for x
   x = 2,729,276,623.51/42,522.88
6. Step 6: Final answer
   x = 64,183.72