Finding the Fourth Proportional to 279,100.78, 385,162.16 and 151,776.38

Step by Step Solution

1. Step 1: Write the proportion equation
   279,100.78 : 385,162.16 = 151,776.38 : x
2. Step 2: Convert to fraction form
   279,100.78/385,162.16 = 151,776.38/x
3. Step 3: Cross multiply
   279,100.78x = 385,162.16 × 151,776.38
4. Step 4: Simplify right side
   279,100.78x = 58,458,518,357.78
5. Step 5: Solve for x
   x = 58,458,518,357.78/279,100.78
6. Step 6: Final answer
   x = 209,453.08