Finding the Fourth Proportional to 280,107.88, 386,557.86 and 152,788.84

Step by Step Solution

1. Step 1: Write the proportion equation
   280,107.88 : 386,557.86 = 152,788.84 : x
2. Step 2: Convert to fraction form
   280,107.88/386,557.86 = 152,788.84/x
3. Step 3: Cross multiply
   280,107.88x = 386,557.86 × 152,788.84
4. Step 4: Simplify right side
   280,107.88x = 59,061,727,022.28
5. Step 5: Solve for x
   x = 59,061,727,022.28/280,107.88
6. Step 6: Final answer
   x = 210,853.50