Finding the Fourth Proportional to 42,901.50, 64,361.97 and 15,199.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,901.50 : 64,361.97 = 15,199.50 : x
2. Step 2: Convert to fraction form
   42,901.50/64,361.97 = 15,199.50/x
3. Step 3: Cross multiply
   42,901.50x = 64,361.97 × 15,199.50
4. Step 4: Simplify right side
   42,901.50x = 978,269,763.02
5. Step 5: Solve for x
   x = 978,269,763.02/42,901.50
6. Step 6: Final answer
   x = 22,802.69