Finding the Fourth Proportional to 70,987.59, 106,328.70 and 33,491.48

Step by Step Solution

1. Step 1: Write the proportion equation
   70,987.59 : 106,328.70 = 33,491.48 : x
2. Step 2: Convert to fraction form
   70,987.59/106,328.70 = 33,491.48/x
3. Step 3: Cross multiply
   70,987.59x = 106,328.70 × 33,491.48
4. Step 4: Simplify right side
   70,987.59x = 3,561,104,997.83
5. Step 5: Solve for x
   x = 3,561,104,997.83/70,987.59
6. Step 6: Final answer
   x = 50,165.18