Finding the Fourth Proportional to 64,820.25, 89,451.95 and 35,012.25

Step by Step Solution

1. Step 1: Write the proportion equation
   64,820.25 : 89,451.95 = 35,012.25 : x
2. Step 2: Convert to fraction form
   64,820.25/89,451.95 = 35,012.25/x
3. Step 3: Cross multiply
   64,820.25x = 89,451.95 × 35,012.25
4. Step 4: Simplify right side
   64,820.25x = 3,131,913,861.33
5. Step 5: Solve for x
   x = 3,131,913,861.33/64,820.25
6. Step 6: Final answer
   x = 48,316.91