Finding the Fourth Proportional to 203,061.15, 280,215.29 and 112,410.71

Step by Step Solution

1. Step 1: Write the proportion equation
   203,061.15 : 280,215.29 = 112,410.71 : x
2. Step 2: Convert to fraction form
   203,061.15/280,215.29 = 112,410.71/x
3. Step 3: Cross multiply
   203,061.15x = 280,215.29 × 112,410.71
4. Step 4: Simplify right side
   203,061.15x = 31,499,197,738.63
5. Step 5: Solve for x
   x = 31,499,197,738.63/203,061.15
6. Step 6: Final answer
   x = 155,121.73