Finding the Fourth Proportional to 59,987.78, 82,781.55 and 33,129.71

Step by Step Solution

1. Step 1: Write the proportion equation
   59,987.78 : 82,781.55 = 33,129.71 : x
2. Step 2: Convert to fraction form
   59,987.78/82,781.55 = 33,129.71/x
3. Step 3: Cross multiply
   59,987.78x = 82,781.55 × 33,129.71
4. Step 4: Simplify right side
   59,987.78x = 2,742,528,165.29
5. Step 5: Solve for x
   x = 2,742,528,165.29/59,987.78
6. Step 6: Final answer
   x = 45,718.12