Finding the Fourth Proportional to 152,105.80, 209,473.62 and 148,849.48

Step by Step Solution

1. Step 1: Write the proportion equation
   152,105.80 : 209,473.62 = 148,849.48 : x
2. Step 2: Convert to fraction form
   152,105.80/209,473.62 = 148,849.48/x
3. Step 3: Cross multiply
   152,105.80x = 209,473.62 × 148,849.48
4. Step 4: Simplify right side
   152,105.80x = 31,180,039,410.72
5. Step 5: Solve for x
   x = 31,180,039,410.72/152,105.80
6. Step 6: Final answer
   x = 204,989.15