Finding the Fourth Proportional to 173,036.72, 238,774.08 and 105,090.88

Step by Step Solution

1. Step 1: Write the proportion equation
   173,036.72 : 238,774.08 = 105,090.88 : x
2. Step 2: Convert to fraction form
   173,036.72/238,774.08 = 105,090.88/x
3. Step 3: Cross multiply
   173,036.72x = 238,774.08 × 105,090.88
4. Step 4: Simplify right side
   173,036.72x = 25,092,978,188.39
5. Step 5: Solve for x
   x = 25,092,978,188.39/173,036.72
6. Step 6: Final answer
   x = 145,015.34