Finding the Fourth Proportional to 42,896.50, 64,344.54 and 10,875.58

Step by Step Solution

1. Step 1: Write the proportion equation
   42,896.50 : 64,344.54 = 10,875.58 : x
2. Step 2: Convert to fraction form
   42,896.50/64,344.54 = 10,875.58/x
3. Step 3: Cross multiply
   42,896.50x = 64,344.54 × 10,875.58
4. Step 4: Simplify right side
   42,896.50x = 699,784,192.33
5. Step 5: Solve for x
   x = 699,784,192.33/42,896.50
6. Step 6: Final answer
   x = 16,313.32