Finding the Fourth Proportional to 279,719.91, 386,013.52 and 152,395.50

Step by Step Solution

1. Step 1: Write the proportion equation
   279,719.91 : 386,013.52 = 152,395.50 : x
2. Step 2: Convert to fraction form
   279,719.91/386,013.52 = 152,395.50/x
3. Step 3: Cross multiply
   279,719.91x = 386,013.52 × 152,395.50
4. Step 4: Simplify right side
   279,719.91x = 58,826,724,453.72
5. Step 5: Solve for x
   x = 58,826,724,453.72/279,719.91
6. Step 6: Final answer
   x = 210,305.82