Finding the Fourth Proportional to 489,859.59, 734,816.72 and 152,946.76

Step by Step Solution

1. Step 1: Write the proportion equation
   489,859.59 : 734,816.72 = 152,946.76 : x
2. Step 2: Convert to fraction form
   489,859.59/734,816.72 = 152,946.76/x
3. Step 3: Cross multiply
   489,859.59x = 734,816.72 × 152,946.76
4. Step 4: Simplify right side
   489,859.59x = 112,387,836,517.83
5. Step 5: Solve for x
   x = 112,387,836,517.83/489,859.59
6. Step 6: Final answer
   x = 229,428.67