Finding the Fourth Proportional to 112,376.05, 168,570.54 and 42,255.97

Step by Step Solution

1. Step 1: Write the proportion equation
   112,376.05 : 168,570.54 = 42,255.97 : x
2. Step 2: Convert to fraction form
   112,376.05/168,570.54 = 42,255.97/x
3. Step 3: Cross multiply
   112,376.05x = 168,570.54 × 42,255.97
4. Step 4: Simplify right side
   112,376.05x = 7,123,110,943.91
5. Step 5: Solve for x
   x = 7,123,110,943.91/112,376.05
6. Step 6: Final answer
   x = 63,386.38