Finding the Fourth Proportional to 103,300.20, 154,820.70 and 50,596.20

Step by Step Solution

1. Step 1: Write the proportion equation
   103,300.20 : 154,820.70 = 50,596.20 : x
2. Step 2: Convert to fraction form
   103,300.20/154,820.70 = 50,596.20/x
3. Step 3: Cross multiply
   103,300.20x = 154,820.70 × 50,596.20
4. Step 4: Simplify right side
   103,300.20x = 7,833,339,101.34
5. Step 5: Solve for x
   x = 7,833,339,101.34/103,300.20
6. Step 6: Final answer
   x = 75,830.82