Finding the Fourth Proportional to 199,561.56, 275,397.54 and 117,892.50

Step by Step Solution

1. Step 1: Write the proportion equation
   199,561.56 : 275,397.54 = 117,892.50 : x
2. Step 2: Convert to fraction form
   199,561.56/275,397.54 = 117,892.50/x
3. Step 3: Cross multiply
   199,561.56x = 275,397.54 × 117,892.50
4. Step 4: Simplify right side
   199,561.56x = 32,467,304,484.45
5. Step 5: Solve for x
   x = 32,467,304,484.45/199,561.56
6. Step 6: Final answer
   x = 162,693.18