Finding the Fourth Proportional to 204,757.80, 307,145.34 and 99,656.52

Step by Step Solution

1. Step 1: Write the proportion equation
   204,757.80 : 307,145.34 = 99,656.52 : x
2. Step 2: Convert to fraction form
   204,757.80/307,145.34 = 99,656.52/x
3. Step 3: Cross multiply
   204,757.80x = 307,145.34 × 99,656.52
4. Step 4: Simplify right side
   204,757.80x = 30,609,035,718.62
5. Step 5: Solve for x
   x = 30,609,035,718.62/204,757.80
6. Step 6: Final answer
   x = 149,488.99