Finding the Fourth Proportional to 279,455.76, 385,650.72 and 152,131.32

Step by Step Solution

1. Step 1: Write the proportion equation
   279,455.76 : 385,650.72 = 152,131.32 : x
2. Step 2: Convert to fraction form
   279,455.76/385,650.72 = 152,131.32/x
3. Step 3: Cross multiply
   279,455.76x = 385,650.72 × 152,131.32
4. Step 4: Simplify right side
   279,455.76x = 58,669,553,092.55
5. Step 5: Solve for x
   x = 58,669,553,092.55/279,455.76
6. Step 6: Final answer
   x = 209,942.19