Finding the Fourth Proportional to 172,871.19, 238,019.36 and 146,978.82

Step by Step Solution

1. Step 1: Write the proportion equation
   172,871.19 : 238,019.36 = 146,978.82 : x
2. Step 2: Convert to fraction form
   172,871.19/238,019.36 = 146,978.82/x
3. Step 3: Cross multiply
   172,871.19x = 238,019.36 × 146,978.82
4. Step 4: Simplify right side
   172,871.19x = 34,983,803,935.06
5. Step 5: Solve for x
   x = 34,983,803,935.06/172,871.19
6. Step 6: Final answer
   x = 202,369.20