Finding the Fourth Proportional to 315,948.72, 435,805.56 and 188,526

Step by Step Solution

1. Step 1: Write the proportion equation
   315,948.72 : 435,805.56 = 188,526 : x
2. Step 2: Convert to fraction form
   315,948.72/435,805.56 = 188,526/x
3. Step 3: Cross multiply
   315,948.72x = 435,805.56 × 188,526
4. Step 4: Simplify right side
   315,948.72x = 82,160,679,004.56
5. Step 5: Solve for x
   x = 82,160,679,004.56/315,948.72
6. Step 6: Final answer
   x = 260,044.35