Finding the Fourth Proportional to 42,845.16, 64,155.96 and 34,479.48

Step by Step Solution

1. Step 1: Write the proportion equation
   42,845.16 : 64,155.96 = 34,479.48 : x
2. Step 2: Convert to fraction form
   42,845.16/64,155.96 = 34,479.48/x
3. Step 3: Cross multiply
   42,845.16x = 64,155.96 × 34,479.48
4. Step 4: Simplify right side
   42,845.16x = 2,212,064,139.70
5. Step 5: Solve for x
   x = 2,212,064,139.70/42,845.16
6. Step 6: Final answer
   x = 51,629.27