Finding the Fourth Proportional to 64,850.67, 89,507.84 and 40,962.15

Step by Step Solution

1. Step 1: Write the proportion equation
   64,850.67 : 89,507.84 = 40,962.15 : x
2. Step 2: Convert to fraction form
   64,850.67/89,507.84 = 40,962.15/x
3. Step 3: Cross multiply
   64,850.67x = 89,507.84 × 40,962.15
4. Step 4: Simplify right side
   64,850.67x = 3,666,433,363.45
5. Step 5: Solve for x
   x = 3,666,433,363.45/64,850.67
6. Step 6: Final answer
   x = 56,536.55