Finding the Fourth Proportional to 13,123.42, 19,680.30 and 4,800.97

Step by Step Solution

1. Step 1: Write the proportion equation
   13,123.42 : 19,680.30 = 4,800.97 : x
2. Step 2: Convert to fraction form
   13,123.42/19,680.30 = 4,800.97/x
3. Step 3: Cross multiply
   13,123.42x = 19,680.30 × 4,800.97
4. Step 4: Simplify right side
   13,123.42x = 94,484,554.49
5. Step 5: Solve for x
   x = 94,484,554.49/13,123.42
6. Step 6: Final answer
   x = 7,199.69