Finding the Fourth Proportional to 605,061.09, 907,596.83 and 172,777.43

Step by Step Solution

1. Step 1: Write the proportion equation
   605,061.09 : 907,596.83 = 172,777.43 : x
2. Step 2: Convert to fraction form
   605,061.09/907,596.83 = 172,777.43/x
3. Step 3: Cross multiply
   605,061.09x = 907,596.83 × 172,777.43
4. Step 4: Simplify right side
   605,061.09x = 156,812,247,763.55
5. Step 5: Solve for x
   x = 156,812,247,763.55/605,061.09
6. Step 6: Final answer
   x = 259,167.63