Finding the Fourth Proportional to 766,603.10, 1,150,065.12 and 261,124.22

Step by Step Solution

1. Step 1: Write the proportion equation
   766,603.10 : 1,150,065.12 = 261,124.22 : x
2. Step 2: Convert to fraction form
   766,603.10/1,150,065.12 = 261,124.22/x
3. Step 3: Cross multiply
   766,603.10x = 1,150,065.12 × 261,124.22
4. Step 4: Simplify right side
   766,603.10x = 300,309,857,409.21
5. Step 5: Solve for x
   x = 300,309,857,409.21/766,603.10
6. Step 6: Final answer
   x = 391,740.99