Finding the Fourth Proportional to 279,474.96, 385,683.52 and 152,152.72

Step by Step Solution

1. Step 1: Write the proportion equation
   279,474.96 : 385,683.52 = 152,152.72 : x
2. Step 2: Convert to fraction form
   279,474.96/385,683.52 = 152,152.72/x
3. Step 3: Cross multiply
   279,474.96x = 385,683.52 × 152,152.72
4. Step 4: Simplify right side
   279,474.96x = 58,682,796,627.17
5. Step 5: Solve for x
   x = 58,682,796,627.17/279,474.96
6. Step 6: Final answer
   x = 209,975.15