Finding the Fourth Proportional to 42,839.35, 64,147.24 and 34,473.67

Step by Step Solution

1. Step 1: Write the proportion equation
   42,839.35 : 64,147.24 = 34,473.67 : x
2. Step 2: Convert to fraction form
   42,839.35/64,147.24 = 34,473.67/x
3. Step 3: Cross multiply
   42,839.35x = 64,147.24 × 34,473.67
4. Step 4: Simplify right side
   42,839.35x = 2,211,390,665.89
5. Step 5: Solve for x
   x = 2,211,390,665.89/42,839.35
6. Step 6: Final answer
   x = 51,620.55