Finding the Fourth Proportional to 108,858.30, 163,293.53 and 33,988.78

Step by Step Solution

1. Step 1: Write the proportion equation
   108,858.30 : 163,293.53 = 33,988.78 : x
2. Step 2: Convert to fraction form
   108,858.30/163,293.53 = 33,988.78/x
3. Step 3: Cross multiply
   108,858.30x = 163,293.53 × 33,988.78
4. Step 4: Simplify right side
   108,858.30x = 5,550,147,866.59
5. Step 5: Solve for x
   x = 5,550,147,866.59/108,858.30
6. Step 6: Final answer
   x = 50,985.07