Finding the Fourth Proportional to 520,012.72, 780,111.24 and 195,793.84

Step by Step Solution

1. Step 1: Write the proportion equation
   520,012.72 : 780,111.24 = 195,793.84 : x
2. Step 2: Convert to fraction form
   520,012.72/780,111.24 = 195,793.84/x
3. Step 3: Cross multiply
   520,012.72x = 780,111.24 × 195,793.84
4. Step 4: Simplify right side
   520,012.72x = 152,740,975,306.76
5. Step 5: Solve for x
   x = 152,740,975,306.76/520,012.72
6. Step 6: Final answer
   x = 293,725.46