Finding the Fourth Proportional to 509,499.32, 764,380.19 and 193,784.00

Step by Step Solution

1. Step 1: Write the proportion equation
   509,499.32 : 764,380.19 = 193,784.00 : x
2. Step 2: Convert to fraction form
   509,499.32/764,380.19 = 193,784.00/x
3. Step 3: Cross multiply
   509,499.32x = 764,380.19 × 193,784.00
4. Step 4: Simplify right side
   509,499.32x = 148,124,647,401.52
5. Step 5: Solve for x
   x = 148,124,647,401.52/509,499.32
6. Step 6: Final answer
   x = 290,725.90