Finding the Fourth Proportional to 279,300.62, 385,439.48 and 151,976.86

Step by Step Solution

1. Step 1: Write the proportion equation
   279,300.62 : 385,439.48 = 151,976.86 : x
2. Step 2: Convert to fraction form
   279,300.62/385,439.48 = 151,976.86/x
3. Step 3: Cross multiply
   279,300.62x = 385,439.48 × 151,976.86
4. Step 4: Simplify right side
   279,300.62x = 58,577,881,890.43
5. Step 5: Solve for x
   x = 58,577,881,890.43/279,300.62
6. Step 6: Final answer
   x = 209,730.58