Finding the Fourth Proportional to 140,998.42, 194,621.38 and 90,697.42

Step by Step Solution

1. Step 1: Write the proportion equation
   140,998.42 : 194,621.38 = 90,697.42 : x
2. Step 2: Convert to fraction form
   140,998.42/194,621.38 = 90,697.42/x
3. Step 3: Cross multiply
   140,998.42x = 194,621.38 × 90,697.42
4. Step 4: Simplify right side
   140,998.42x = 17,651,657,569.55
5. Step 5: Solve for x
   x = 17,651,657,569.55/140,998.42
6. Step 6: Final answer
   x = 125,190.46