Finding the Fourth Proportional to 81,607.59, 122,387.69 and 34,221.45

Step by Step Solution

1. Step 1: Write the proportion equation
   81,607.59 : 122,387.69 = 34,221.45 : x
2. Step 2: Convert to fraction form
   81,607.59/122,387.69 = 34,221.45/x
3. Step 3: Cross multiply
   81,607.59x = 122,387.69 × 34,221.45
4. Step 4: Simplify right side
   81,607.59x = 4,188,284,042.84
5. Step 5: Solve for x
   x = 4,188,284,042.84/81,607.59
6. Step 6: Final answer
   x = 51,322.24