Finding the Fourth Proportional to 172,978.52, 238,709.94 and 97,526.48

Step by Step Solution

1. Step 1: Write the proportion equation
   172,978.52 : 238,709.94 = 97,526.48 : x
2. Step 2: Convert to fraction form
   172,978.52/238,709.94 = 97,526.48/x
3. Step 3: Cross multiply
   172,978.52x = 238,709.94 × 97,526.48
4. Step 4: Simplify right side
   172,978.52x = 23,280,540,189.21
5. Step 5: Solve for x
   x = 23,280,540,189.21/172,978.52
6. Step 6: Final answer
   x = 134,586.31