Finding the Fourth Proportional to 279,784.99, 386,103.78 and 152,460.59

Step by Step Solution

1. Step 1: Write the proportion equation
   279,784.99 : 386,103.78 = 152,460.59 : x
2. Step 2: Convert to fraction form
   279,784.99/386,103.78 = 152,460.59/x
3. Step 3: Cross multiply
   279,784.99x = 386,103.78 × 152,460.59
4. Step 4: Simplify right side
   279,784.99x = 58,865,608,169.51
5. Step 5: Solve for x
   x = 58,865,608,169.51/279,784.99
6. Step 6: Final answer
   x = 210,395.88