Finding the Fourth Proportional to 72,089.23, 108,133.82 and 52,492.49

Step by Step Solution

1. Step 1: Write the proportion equation
   72,089.23 : 108,133.82 = 52,492.49 : x
2. Step 2: Convert to fraction form
   72,089.23/108,133.82 = 52,492.49/x
3. Step 3: Cross multiply
   72,089.23x = 108,133.82 × 52,492.49
4. Step 4: Simplify right side
   72,089.23x = 5,676,213,465.01
5. Step 5: Solve for x
   x = 5,676,213,465.01/72,089.23
6. Step 6: Final answer
   x = 78,738.72