Finding the Fourth Proportional to 199,820.34, 275,748.80 and 109,174.35

Step by Step Solution

1. Step 1: Write the proportion equation
   199,820.34 : 275,748.80 = 109,174.35 : x
2. Step 2: Convert to fraction form
   199,820.34/275,748.80 = 109,174.35/x
3. Step 3: Cross multiply
   199,820.34x = 275,748.80 × 109,174.35
4. Step 4: Simplify right side
   199,820.34x = 30,104,696,003.28
5. Step 5: Solve for x
   x = 30,104,696,003.28/199,820.34
6. Step 6: Final answer
   x = 150,658.82