Finding the Fourth Proportional to 61,105.21, 84,323.67 and 35,609.92

Step by Step Solution

1. Step 1: Write the proportion equation
   61,105.21 : 84,323.67 = 35,609.92 : x
2. Step 2: Convert to fraction form
   61,105.21/84,323.67 = 35,609.92/x
3. Step 3: Cross multiply
   61,105.21x = 84,323.67 × 35,609.92
4. Step 4: Simplify right side
   61,105.21x = 3,002,759,142.81
5. Step 5: Solve for x
   x = 3,002,759,142.81/61,105.21
6. Step 6: Final answer
   x = 49,140.80