Finding the Fourth Proportional to 120,314.60, 180,649.31 and 67,110.52

Step by Step Solution

1. Step 1: Write the proportion equation
   120,314.60 : 180,649.31 = 67,110.52 : x
2. Step 2: Convert to fraction form
   120,314.60/180,649.31 = 67,110.52/x
3. Step 3: Cross multiply
   120,314.60x = 180,649.31 × 67,110.52
4. Step 4: Simplify right side
   120,314.60x = 12,123,469,683.34
5. Step 5: Solve for x
   x = 12,123,469,683.34/120,314.60
6. Step 6: Final answer
   x = 100,764.75