Finding the Fourth Proportional to 166,061.28, 229,098.72 and 102,288.48

Step by Step Solution

1. Step 1: Write the proportion equation
   166,061.28 : 229,098.72 = 102,288.48 : x
2. Step 2: Convert to fraction form
   166,061.28/229,098.72 = 102,288.48/x
3. Step 3: Cross multiply
   166,061.28x = 229,098.72 × 102,288.48
4. Step 4: Simplify right side
   166,061.28x = 23,434,159,838.75
5. Step 5: Solve for x
   x = 23,434,159,838.75/166,061.28
6. Step 6: Final answer
   x = 141,117.54