Finding the Fourth Proportional to 617,764,496.29, 852,567,580.52 and 349,887,978.79

Step by Step Solution

1. Step 1: Write the proportion equation
   617,764,496.29 : 852,567,580.52 = 349,887,978.79 : x
2. Step 2: Convert to fraction form
   617,764,496.29/852,567,580.52 = 349,887,978.79/x
3. Step 3: Cross multiply
   617,764,496.29x = 852,567,580.52 × 349,887,978.79
4. Step 4: Simplify right side
   617,764,496.29x = 298,303,147,527,454,592
5. Step 5: Solve for x
   x = 298,303,147,527,454,592/617,764,496.29
6. Step 6: Final answer
   x = 482,875,188.39