Finding the Fourth Proportional to 52,061.26, 78,123.99 and 20,465.77

Step by Step Solution

1. Step 1: Write the proportion equation
   52,061.26 : 78,123.99 = 20,465.77 : x
2. Step 2: Convert to fraction form
   52,061.26/78,123.99 = 20,465.77/x
3. Step 3: Cross multiply
   52,061.26x = 78,123.99 × 20,465.77
4. Step 4: Simplify right side
   52,061.26x = 1,598,867,610.82
5. Step 5: Solve for x
   x = 1,598,867,610.82/52,061.26
6. Step 6: Final answer
   x = 30,711.27