Finding the Fourth Proportional to 64,875.50, 89,528.20 and 35,067.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,875.50 : 89,528.20 = 35,067.50 : x
2. Step 2: Convert to fraction form
   64,875.50/89,528.20 = 35,067.50/x
3. Step 3: Cross multiply
   64,875.50x = 89,528.20 × 35,067.50
4. Step 4: Simplify right side
   64,875.50x = 3,139,530,153.50
5. Step 5: Solve for x
   x = 3,139,530,153.50/64,875.50
6. Step 6: Final answer
   x = 48,393.16