Finding the Fourth Proportional to 72,543.69, 108,788.16 and 30,402.54

Step by Step Solution

1. Step 1: Write the proportion equation
   72,543.69 : 108,788.16 = 30,402.54 : x
2. Step 2: Convert to fraction form
   72,543.69/108,788.16 = 30,402.54/x
3. Step 3: Cross multiply
   72,543.69x = 108,788.16 × 30,402.54
4. Step 4: Simplify right side
   72,543.69x = 3,307,436,385.93
5. Step 5: Solve for x
   x = 3,307,436,385.93/72,543.69
6. Step 6: Final answer
   x = 45,592.34