Finding the Fourth Proportional to 281,441.15, 388,388.27 and 152,379.61

Step by Step Solution

1. Step 1: Write the proportion equation
   281,441.15 : 388,388.27 = 152,379.61 : x
2. Step 2: Convert to fraction form
   281,441.15/388,388.27 = 152,379.61/x
3. Step 3: Cross multiply
   281,441.15x = 388,388.27 × 152,379.61
4. Step 4: Simplify right side
   281,441.15x = 59,182,453,111.17
5. Step 5: Solve for x
   x = 59,182,453,111.17/281,441.15
6. Step 6: Final answer
   x = 210,283.58