Finding the Fourth Proportional to 146,976.72, 202,828.80 and 86,550

Step by Step Solution

1. Step 1: Write the proportion equation
   146,976.72 : 202,828.80 = 86,550 : x
2. Step 2: Convert to fraction form
   146,976.72/202,828.80 = 86,550/x
3. Step 3: Cross multiply
   146,976.72x = 202,828.80 × 86,550
4. Step 4: Simplify right side
   146,976.72x = 17,554,832,640
5. Step 5: Solve for x
   x = 17,554,832,640/146,976.72
6. Step 6: Final answer
   x = 119,439.55