Finding the Fourth Proportional to 72,091.35, 108,137.01 and 52,494.62

Step by Step Solution

1. Step 1: Write the proportion equation
   72,091.35 : 108,137.01 = 52,494.62 : x
2. Step 2: Convert to fraction form
   72,091.35/108,137.01 = 52,494.62/x
3. Step 3: Cross multiply
   72,091.35x = 108,137.01 × 52,494.62
4. Step 4: Simplify right side
   72,091.35x = 5,676,611,247.89
5. Step 5: Solve for x
   x = 5,676,611,247.89/72,091.35
6. Step 6: Final answer
   x = 78,741.92