Finding the Fourth Proportional to 64,859.50, 89,506.20 and 35,051.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,859.50 : 89,506.20 = 35,051.50 : x
2. Step 2: Convert to fraction form
   64,859.50/89,506.20 = 35,051.50/x
3. Step 3: Cross multiply
   64,859.50x = 89,506.20 × 35,051.50
4. Step 4: Simplify right side
   64,859.50x = 3,137,326,569.30
5. Step 5: Solve for x
   x = 3,137,326,569.30/64,859.50
6. Step 6: Final answer
   x = 48,371.12