Finding the Fourth Proportional to 52,233.79, 78,263.50 and 50,290.09

Step by Step Solution

1. Step 1: Write the proportion equation
   52,233.79 : 78,263.50 = 50,290.09 : x
2. Step 2: Convert to fraction form
   52,233.79/78,263.50 = 50,290.09/x
3. Step 3: Cross multiply
   52,233.79x = 78,263.50 × 50,290.09
4. Step 4: Simplify right side
   52,233.79x = 3,935,878,458.72
5. Step 5: Solve for x
   x = 3,935,878,458.72/52,233.79
6. Step 6: Final answer
   x = 75,351.19