Finding the Fourth Proportional to 42,964.16, 64,390.96 and 34,648.16

Step by Step Solution

1. Step 1: Write the proportion equation
   42,964.16 : 64,390.96 = 34,648.16 : x
2. Step 2: Convert to fraction form
   42,964.16/64,390.96 = 34,648.16/x
3. Step 3: Cross multiply
   42,964.16x = 64,390.96 × 34,648.16
4. Step 4: Simplify right side
   42,964.16x = 2,231,028,284.63
5. Step 5: Solve for x
   x = 2,231,028,284.63/42,964.16
6. Step 6: Final answer
   x = 51,927.66