Finding the Fourth Proportional to 279,659.52, 385,928.16 and 152,334.72

Step by Step Solution

1. Step 1: Write the proportion equation
   279,659.52 : 385,928.16 = 152,334.72 : x
2. Step 2: Convert to fraction form
   279,659.52/385,928.16 = 152,334.72/x
3. Step 3: Cross multiply
   279,659.52x = 385,928.16 × 152,334.72
4. Step 4: Simplify right side
   279,659.52x = 58,790,258,193.72
5. Step 5: Solve for x
   x = 58,790,258,193.72/279,659.52
6. Step 6: Final answer
   x = 210,220.84