Finding the Fourth Proportional to 49,584.16, 74,019.56 and 42,487.75

Step by Step Solution

1. Step 1: Write the proportion equation
   49,584.16 : 74,019.56 = 42,487.75 : x
2. Step 2: Convert to fraction form
   49,584.16/74,019.56 = 42,487.75/x
3. Step 3: Cross multiply
   49,584.16x = 74,019.56 × 42,487.75
4. Step 4: Simplify right side
   49,584.16x = 3,144,924,560.39
5. Step 5: Solve for x
   x = 3,144,924,560.39/49,584.16
6. Step 6: Final answer
   x = 63,425.99