Finding the Fourth Proportional to 113,514.42, 170,212.50 and 42,378.54

Step by Step Solution

1. Step 1: Write the proportion equation
   113,514.42 : 170,212.50 = 42,378.54 : x
2. Step 2: Convert to fraction form
   113,514.42/170,212.50 = 42,378.54/x
3. Step 3: Cross multiply
   113,514.42x = 170,212.50 × 42,378.54
4. Step 4: Simplify right side
   113,514.42x = 7,213,357,239.75
5. Step 5: Solve for x
   x = 7,213,357,239.75/113,514.42
6. Step 6: Final answer
   x = 63,545.73