Finding the Fourth Proportional to 72,348.49, 99,841.61 and 40,083.79

Step by Step Solution

1. Step 1: Write the proportion equation
   72,348.49 : 99,841.61 = 40,083.79 : x
2. Step 2: Convert to fraction form
   72,348.49/99,841.61 = 40,083.79/x
3. Step 3: Cross multiply
   72,348.49x = 99,841.61 × 40,083.79
4. Step 4: Simplify right side
   72,348.49x = 4,002,030,128.50
5. Step 5: Solve for x
   x = 4,002,030,128.50/72,348.49
6. Step 6: Final answer
   x = 55,316.01