Finding the Fourth Proportional to 280,111.99, 386,559.81 and 152,792.14

Step by Step Solution

1. Step 1: Write the proportion equation
   280,111.99 : 386,559.81 = 152,792.14 : x
2. Step 2: Convert to fraction form
   280,111.99/386,559.81 = 152,792.14/x
3. Step 3: Cross multiply
   280,111.99x = 386,559.81 × 152,792.14
4. Step 4: Simplify right side
   280,111.99x = 59,063,300,607.89
5. Step 5: Solve for x
   x = 59,063,300,607.89/280,111.99
6. Step 6: Final answer
   x = 210,856.02