Finding the Fourth Proportional to 102,082.52, 152,990.52 and 52,120.37

Step by Step Solution

1. Step 1: Write the proportion equation
   102,082.52 : 152,990.52 = 52,120.37 : x
2. Step 2: Convert to fraction form
   102,082.52/152,990.52 = 52,120.37/x
3. Step 3: Cross multiply
   102,082.52x = 152,990.52 × 52,120.37
4. Step 4: Simplify right side
   102,082.52x = 7,973,921,743.94
5. Step 5: Solve for x
   x = 7,973,921,743.94/102,082.52
6. Step 6: Final answer
   x = 78,112.51