Finding the Fourth Proportional to 279,658.08, 385,931.52 and 152,334.72

Step by Step Solution

1. Step 1: Write the proportion equation
   279,658.08 : 385,931.52 = 152,334.72 : x
2. Step 2: Convert to fraction form
   279,658.08/385,931.52 = 152,334.72/x
3. Step 3: Cross multiply
   279,658.08x = 385,931.52 × 152,334.72
4. Step 4: Simplify right side
   279,658.08x = 58,790,770,038.37
5. Step 5: Solve for x
   x = 58,790,770,038.37/279,658.08
6. Step 6: Final answer
   x = 210,223.75