Finding the Fourth Proportional to 199,592.52, 275,430.78 and 118,978.50

Step by Step Solution

1. Step 1: Write the proportion equation
   199,592.52 : 275,430.78 = 118,978.50 : x
2. Step 2: Convert to fraction form
   199,592.52/275,430.78 = 118,978.50/x
3. Step 3: Cross multiply
   199,592.52x = 275,430.78 × 118,978.50
4. Step 4: Simplify right side
   199,592.52x = 32,770,341,058.23
5. Step 5: Solve for x
   x = 32,770,341,058.23/199,592.52
6. Step 6: Final answer
   x = 164,186.22