Finding the Fourth Proportional to 72,867.58, 109,209.21 and 35,436.22

Step by Step Solution

1. Step 1: Write the proportion equation
   72,867.58 : 109,209.21 = 35,436.22 : x
2. Step 2: Convert to fraction form
   72,867.58/109,209.21 = 35,436.22/x
3. Step 3: Cross multiply
   72,867.58x = 109,209.21 × 35,436.22
4. Step 4: Simplify right side
   72,867.58x = 3,869,961,591.59
5. Step 5: Solve for x
   x = 3,869,961,591.59/72,867.58
6. Step 6: Final answer
   x = 53,109.51