Finding the Fourth Proportional to 64,855.50, 89,500.71 and 35,047.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,855.50 : 89,500.71 = 35,047.50 : x
2. Step 2: Convert to fraction form
   64,855.50/89,500.71 = 35,047.50/x
3. Step 3: Cross multiply
   64,855.50x = 89,500.71 × 35,047.50
4. Step 4: Simplify right side
   64,855.50x = 3,136,776,133.73
5. Step 5: Solve for x
   x = 3,136,776,133.73/64,855.50
6. Step 6: Final answer
   x = 48,365.61