Finding the Fourth Proportional to 81,068.52, 121,637.82 and 43,584.78

Step by Step Solution

1. Step 1: Write the proportion equation
   81,068.52 : 121,637.82 = 43,584.78 : x
2. Step 2: Convert to fraction form
   81,068.52/121,637.82 = 43,584.78/x
3. Step 3: Cross multiply
   81,068.52x = 121,637.82 × 43,584.78
4. Step 4: Simplify right side
   81,068.52x = 5,301,557,624.38
5. Step 5: Solve for x
   x = 5,301,557,624.38/81,068.52
6. Step 6: Final answer
   x = 65,396.01