Finding the Fourth Proportional to 172,642.49, 238,164.11 and 134,138.52

Step by Step Solution

1. Step 1: Write the proportion equation
   172,642.49 : 238,164.11 = 134,138.52 : x
2. Step 2: Convert to fraction form
   172,642.49/238,164.11 = 134,138.52/x
3. Step 3: Cross multiply
   172,642.49x = 238,164.11 × 134,138.52
4. Step 4: Simplify right side
   172,642.49x = 31,946,980,561.82
5. Step 5: Solve for x
   x = 31,946,980,561.82/172,642.49
6. Step 6: Final answer
   x = 185,047.04