Finding the Fourth Proportional to 72,461.62, 108,692.86 and 32,991.12

Step by Step Solution

1. Step 1: Write the proportion equation
   72,461.62 : 108,692.86 = 32,991.12 : x
2. Step 2: Convert to fraction form
   72,461.62/108,692.86 = 32,991.12/x
3. Step 3: Cross multiply
   72,461.62x = 108,692.86 × 32,991.12
4. Step 4: Simplify right side
   72,461.62x = 3,585,899,187.40
5. Step 5: Solve for x
   x = 3,585,899,187.40/72,461.62
6. Step 6: Final answer
   x = 49,486.88