Finding the Fourth Proportional to 72,164.61, 99,587.29 and 40,333.48

Step by Step Solution

1. Step 1: Write the proportion equation
   72,164.61 : 99,587.29 = 40,333.48 : x
2. Step 2: Convert to fraction form
   72,164.61/99,587.29 = 40,333.48/x
3. Step 3: Cross multiply
   72,164.61x = 99,587.29 × 40,333.48
4. Step 4: Simplify right side
   72,164.61x = 4,016,701,969.47
5. Step 5: Solve for x
   x = 4,016,701,969.47/72,164.61
6. Step 6: Final answer
   x = 55,660.27