Finding the Fourth Proportional to 72,114.84, 99,518.69 and 40,284.95

Step by Step Solution

1. Step 1: Write the proportion equation
   72,114.84 : 99,518.69 = 40,284.95 : x
2. Step 2: Convert to fraction form
   72,114.84/99,518.69 = 40,284.95/x
3. Step 3: Cross multiply
   72,114.84x = 99,518.69 × 40,284.95
4. Step 4: Simplify right side
   72,114.84x = 4,009,105,053.83
5. Step 5: Solve for x
   x = 4,009,105,053.83/72,114.84
6. Step 6: Final answer
   x = 55,593.34