Finding the Fourth Proportional to 146,731.94, 202,538.31 and 86,300

Step by Step Solution

1. Step 1: Write the proportion equation
   146,731.94 : 202,538.31 = 86,300 : x
2. Step 2: Convert to fraction form
   146,731.94/202,538.31 = 86,300/x
3. Step 3: Cross multiply
   146,731.94x = 202,538.31 × 86,300
4. Step 4: Simplify right side
   146,731.94x = 17,479,056,153
5. Step 5: Solve for x
   x = 17,479,056,153/146,731.94
6. Step 6: Final answer
   x = 119,122.37