Finding the Fourth Proportional to 279,019.69, 385,049.90 and 151,698.02

Step by Step Solution

1. Step 1: Write the proportion equation
   279,019.69 : 385,049.90 = 151,698.02 : x
2. Step 2: Convert to fraction form
   279,019.69/385,049.90 = 151,698.02/x
3. Step 3: Cross multiply
   279,019.69x = 385,049.90 × 151,698.02
4. Step 4: Simplify right side
   279,019.69x = 58,411,305,885.19
5. Step 5: Solve for x
   x = 58,411,305,885.19/279,019.69
6. Step 6: Final answer
   x = 209,344.75