Finding the Fourth Proportional to 72,028.74, 99,400.56 and 41,815.34

Step by Step Solution

1. Step 1: Write the proportion equation
   72,028.74 : 99,400.56 = 41,815.34 : x
2. Step 2: Convert to fraction form
   72,028.74/99,400.56 = 41,815.34/x
3. Step 3: Cross multiply
   72,028.74x = 99,400.56 × 41,815.34
4. Step 4: Simplify right side
   72,028.74x = 4,156,468,212.59
5. Step 5: Solve for x
   x = 4,156,468,212.59/72,028.74
6. Step 6: Final answer
   x = 57,705.69