Finding the Fourth Proportional to 120,254.82, 165,925.31 and 71,849.49

Step by Step Solution

1. Step 1: Write the proportion equation
   120,254.82 : 165,925.31 = 71,849.49 : x
2. Step 2: Convert to fraction form
   120,254.82/165,925.31 = 71,849.49/x
3. Step 3: Cross multiply
   120,254.82x = 165,925.31 × 71,849.49
4. Step 4: Simplify right side
   120,254.82x = 11,921,648,901.59
5. Step 5: Solve for x
   x = 11,921,648,901.59/120,254.82
6. Step 6: Final answer
   x = 99,136.56