Finding the Fourth Proportional to 127,983.81, 191,893.50 and 53,155.56

Step by Step Solution

1. Step 1: Write the proportion equation
   127,983.81 : 191,893.50 = 53,155.56 : x
2. Step 2: Convert to fraction form
   127,983.81/191,893.50 = 53,155.56/x
3. Step 3: Cross multiply
   127,983.81x = 191,893.50 × 53,155.56
4. Step 4: Simplify right side
   127,983.81x = 10,200,206,452.86
5. Step 5: Solve for x
   x = 10,200,206,452.86/127,983.81
6. Step 6: Final answer
   x = 79,699.19