Finding the Fourth Proportional to 281,730.71, 388,789.57 and 152,669.46

Step by Step Solution

1. Step 1: Write the proportion equation
   281,730.71 : 388,789.57 = 152,669.46 : x
2. Step 2: Convert to fraction form
   281,730.71/388,789.57 = 152,669.46/x
3. Step 3: Cross multiply
   281,730.71x = 388,789.57 × 152,669.46
4. Step 4: Simplify right side
   281,730.71x = 59,356,293,705.53
5. Step 5: Solve for x
   x = 59,356,293,705.53/281,730.71
6. Step 6: Final answer
   x = 210,684.50