Finding the Fourth Proportional to 72,878.02, 109,279.50 and 33,401.32

Step by Step Solution

1. Step 1: Write the proportion equation
   72,878.02 : 109,279.50 = 33,401.32 : x
2. Step 2: Convert to fraction form
   72,878.02/109,279.50 = 33,401.32/x
3. Step 3: Cross multiply
   72,878.02x = 109,279.50 × 33,401.32
4. Step 4: Simplify right side
   72,878.02x = 3,650,079,548.94
5. Step 5: Solve for x
   x = 3,650,079,548.94/72,878.02
6. Step 6: Final answer
   x = 50,084.78