Finding the Fourth Proportional to 52,815.15, 78,672.47 and 50,010.30

Step by Step Solution

1. Step 1: Write the proportion equation
   52,815.15 : 78,672.47 = 50,010.30 : x
2. Step 2: Convert to fraction form
   52,815.15/78,672.47 = 50,010.30/x
3. Step 3: Cross multiply
   52,815.15x = 78,672.47 × 50,010.30
4. Step 4: Simplify right side
   52,815.15x = 3,934,433,576.39
5. Step 5: Solve for x
   x = 3,934,433,576.39/52,815.15
6. Step 6: Final answer
   x = 74,494.41