Finding the Fourth Proportional to 72,250.02, 99,703.52 and 40,419.18

Step by Step Solution

1. Step 1: Write the proportion equation
   72,250.02 : 99,703.52 = 40,419.18 : x
2. Step 2: Convert to fraction form
   72,250.02/99,703.52 = 40,419.18/x
3. Step 3: Cross multiply
   72,250.02x = 99,703.52 × 40,419.18
4. Step 4: Simplify right side
   72,250.02x = 4,029,934,521.51
5. Step 5: Solve for x
   x = 4,029,934,521.51/72,250.02
6. Step 6: Final answer
   x = 55,777.62