Finding the Fourth Proportional to 64,849.41, 89,533.82 and 40,683.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,849.41 : 89,533.82 = 40,683.50 : x
2. Step 2: Convert to fraction form
   64,849.41/89,533.82 = 40,683.50/x
3. Step 3: Cross multiply
   64,849.41x = 89,533.82 × 40,683.50
4. Step 4: Simplify right side
   64,849.41x = 3,642,548,820.01
5. Step 5: Solve for x
   x = 3,642,548,820.01/64,849.41
6. Step 6: Final answer
   x = 56,169.34