Finding the Fourth Proportional to 14,253.03, 19,667.48 and 7,878.77

Step by Step Solution

1. Step 1: Write the proportion equation
   14,253.03 : 19,667.48 = 7,878.77 : x
2. Step 2: Convert to fraction form
   14,253.03/19,667.48 = 7,878.77/x
3. Step 3: Cross multiply
   14,253.03x = 19,667.48 × 7,878.77
4. Step 4: Simplify right side
   14,253.03x = 154,955,472.76
5. Step 5: Solve for x
   x = 154,955,472.76/14,253.03
6. Step 6: Final answer
   x = 10,871.76