Finding the Fourth Proportional to 64,854.50, 89,499.21 and 35,046.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,854.50 : 89,499.21 = 35,046.50 : x
2. Step 2: Convert to fraction form
   64,854.50/89,499.21 = 35,046.50/x
3. Step 3: Cross multiply
   64,854.50x = 89,499.21 × 35,046.50
4. Step 4: Simplify right side
   64,854.50x = 3,136,634,063.27
5. Step 5: Solve for x
   x = 3,136,634,063.27/64,854.50
6. Step 6: Final answer
   x = 48,364.17