Finding the Fourth Proportional to 61,899, 85,422.18 and 33,604.68

Step by Step Solution

1. Step 1: Write the proportion equation
   61,899 : 85,422.18 = 33,604.68 : x
2. Step 2: Convert to fraction form
   61,899/85,422.18 = 33,604.68/x
3. Step 3: Cross multiply
   61,899x = 85,422.18 × 33,604.68
4. Step 4: Simplify right side
   61,899x = 2,870,585,023.80
5. Step 5: Solve for x
   x = 2,870,585,023.80/61,899
6. Step 6: Final answer
   x = 46,375.31