Finding the Fourth Proportional to 72,349.52, 99,843.71 and 40,518.34

Step by Step Solution

1. Step 1: Write the proportion equation
   72,349.52 : 99,843.71 = 40,518.34 : x
2. Step 2: Convert to fraction form
   72,349.52/99,843.71 = 40,518.34/x
3. Step 3: Cross multiply
   72,349.52x = 99,843.71 × 40,518.34
4. Step 4: Simplify right side
   72,349.52x = 4,045,501,839.93
5. Step 5: Solve for x
   x = 4,045,501,839.93/72,349.52
6. Step 6: Final answer
   x = 55,916.08