Finding the Fourth Proportional to 59,986.12, 82,780.56 and 33,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,986.12 : 82,780.56 = 33,128.50 : x
2. Step 2: Convert to fraction form
   59,986.12/82,780.56 = 33,128.50/x
3. Step 3: Cross multiply
   59,986.12x = 82,780.56 × 33,128.50
4. Step 4: Simplify right side
   59,986.12x = 2,742,395,781.96
5. Step 5: Solve for x
   x = 2,742,395,781.96/59,986.12
6. Step 6: Final answer
   x = 45,717.17