Finding the Fourth Proportional to 279,947.61, 386,333.73 and 152,624.07

Step by Step Solution

1. Step 1: Write the proportion equation
   279,947.61 : 386,333.73 = 152,624.07 : x
2. Step 2: Convert to fraction form
   279,947.61/386,333.73 = 152,624.07/x
3. Step 3: Cross multiply
   279,947.61x = 386,333.73 × 152,624.07
4. Step 4: Simplify right side
   279,947.61x = 58,963,826,250.88
5. Step 5: Solve for x
   x = 58,963,826,250.88/279,947.61
6. Step 6: Final answer
   x = 210,624.50