Finding the Fourth Proportional to 72,886.50, 109,336.50 and 33,437.88

Step by Step Solution

1. Step 1: Write the proportion equation
   72,886.50 : 109,336.50 = 33,437.88 : x
2. Step 2: Convert to fraction form
   72,886.50/109,336.50 = 33,437.88/x
3. Step 3: Cross multiply
   72,886.50x = 109,336.50 × 33,437.88
4. Step 4: Simplify right side
   72,886.50x = 3,655,980,766.62
5. Step 5: Solve for x
   x = 3,655,980,766.62/72,886.50
6. Step 6: Final answer
   x = 50,159.92