Finding the Fourth Proportional to 269,245, 371,560.68 and 148,390.72

Step by Step Solution

1. Step 1: Write the proportion equation
   269,245 : 371,560.68 = 148,390.72 : x
2. Step 2: Convert to fraction form
   269,245/371,560.68 = 148,390.72/x
3. Step 3: Cross multiply
   269,245x = 371,560.68 × 148,390.72
4. Step 4: Simplify right side
   269,245x = 55,136,156,828.89
5. Step 5: Solve for x
   x = 55,136,156,828.89/269,245
6. Step 6: Final answer
   x = 204,780.62