Finding the Fourth Proportional to 173,032.72, 238,768.56 and 105,086.88

Step by Step Solution

1. Step 1: Write the proportion equation
   173,032.72 : 238,768.56 = 105,086.88 : x
2. Step 2: Convert to fraction form
   173,032.72/238,768.56 = 105,086.88/x
3. Step 3: Cross multiply
   173,032.72x = 238,768.56 × 105,086.88
4. Step 4: Simplify right side
   173,032.72x = 25,091,443,012.49
5. Step 5: Solve for x
   x = 25,091,443,012.49/173,032.72
6. Step 6: Final answer
   x = 145,009.82