Finding the Fourth Proportional to 70,641.69, 97,491 and 40,436.49

Step by Step Solution

1. Step 1: Write the proportion equation
   70,641.69 : 97,491 = 40,436.49 : x
2. Step 2: Convert to fraction form
   70,641.69/97,491 = 40,436.49/x
3. Step 3: Cross multiply
   70,641.69x = 97,491 × 40,436.49
4. Step 4: Simplify right side
   70,641.69x = 3,942,193,846.59
5. Step 5: Solve for x
   x = 3,942,193,846.59/70,641.69
6. Step 6: Final answer
   x = 55,805.49