Finding the Fourth Proportional to 141,426.48, 194,973.30 and 112,843.20

Step by Step Solution

1. Step 1: Write the proportion equation
   141,426.48 : 194,973.30 = 112,843.20 : x
2. Step 2: Convert to fraction form
   141,426.48/194,973.30 = 112,843.20/x
3. Step 3: Cross multiply
   141,426.48x = 194,973.30 × 112,843.20
4. Step 4: Simplify right side
   141,426.48x = 22,001,411,086.56
5. Step 5: Solve for x
   x = 22,001,411,086.56/141,426.48
6. Step 6: Final answer
   x = 155,567.83