Finding the Fourth Proportional to 141,428.52, 194,970.33 and 112,494.42

Step by Step Solution

1. Step 1: Write the proportion equation
   141,428.52 : 194,970.33 = 112,494.42 : x
2. Step 2: Convert to fraction form
   141,428.52/194,970.33 = 112,494.42/x
3. Step 3: Cross multiply
   141,428.52x = 194,970.33 × 112,494.42
4. Step 4: Simplify right side
   141,428.52x = 21,933,074,190.56
5. Step 5: Solve for x
   x = 21,933,074,190.56/141,428.52
6. Step 6: Final answer
   x = 155,082.40