Finding the Fourth Proportional to 112,479.36, 168,743.76 and 42,358.56

Step by Step Solution

1. Step 1: Write the proportion equation
   112,479.36 : 168,743.76 = 42,358.56 : x
2. Step 2: Convert to fraction form
   112,479.36/168,743.76 = 42,358.56/x
3. Step 3: Cross multiply
   112,479.36x = 168,743.76 × 42,358.56
4. Step 4: Simplify right side
   112,479.36x = 7,147,742,682.59
5. Step 5: Solve for x
   x = 7,147,742,682.59/112,479.36
6. Step 6: Final answer
   x = 63,547.15