Finding the Fourth Proportional to 526,050.72, 789,274.72 and 315,835.20

Step by Step Solution

1. Step 1: Write the proportion equation
   526,050.72 : 789,274.72 = 315,835.20 : x
2. Step 2: Convert to fraction form
   526,050.72/789,274.72 = 315,835.20/x
3. Step 3: Cross multiply
   526,050.72x = 789,274.72 × 315,835.20
4. Step 4: Simplify right side
   526,050.72x = 249,280,739,046.14
5. Step 5: Solve for x
   x = 249,280,739,046.14/526,050.72
6. Step 6: Final answer
   x = 473,872.06