Finding the Fourth Proportional to 61,900.21, 85,423.22 and 33,605.89

Step by Step Solution

1. Step 1: Write the proportion equation
   61,900.21 : 85,423.22 = 33,605.89 : x
2. Step 2: Convert to fraction form
   61,900.21/85,423.22 = 33,605.89/x
3. Step 3: Cross multiply
   61,900.21x = 85,423.22 × 33,605.89
4. Step 4: Simplify right side
   61,900.21x = 2,870,723,334.77
5. Step 5: Solve for x
   x = 2,870,723,334.77/61,900.21
6. Step 6: Final answer
   x = 46,376.63