Finding the Fourth Proportional to 72,050.58, 99,429.12 and 40,224.87

Step by Step Solution

1. Step 1: Write the proportion equation
   72,050.58 : 99,429.12 = 40,224.87 : x
2. Step 2: Convert to fraction form
   72,050.58/99,429.12 = 40,224.87/x
3. Step 3: Cross multiply
   72,050.58x = 99,429.12 × 40,224.87
4. Step 4: Simplify right side
   72,050.58x = 3,999,523,426.21
5. Step 5: Solve for x
   x = 3,999,523,426.21/72,050.58
6. Step 6: Final answer
   x = 55,509.94