Finding the Fourth Proportional to 72,118.91, 99,524.82 and 40,284.08

Step by Step Solution

1. Step 1: Write the proportion equation
   72,118.91 : 99,524.82 = 40,284.08 : x
2. Step 2: Convert to fraction form
   72,118.91/99,524.82 = 40,284.08/x
3. Step 3: Cross multiply
   72,118.91x = 99,524.82 × 40,284.08
4. Step 4: Simplify right side
   72,118.91x = 4,009,265,810.87
5. Step 5: Solve for x
   x = 4,009,265,810.87/72,118.91
6. Step 6: Final answer
   x = 55,592.43