Finding the Fourth Proportional to 112,221.27, 168,288.17 and 42,062.31

Step by Step Solution

1. Step 1: Write the proportion equation
   112,221.27 : 168,288.17 = 42,062.31 : x
2. Step 2: Convert to fraction form
   112,221.27/168,288.17 = 42,062.31/x
3. Step 3: Cross multiply
   112,221.27x = 168,288.17 × 42,062.31
4. Step 4: Simplify right side
   112,221.27x = 7,078,588,965.56
5. Step 5: Solve for x
   x = 7,078,588,965.56/112,221.27
6. Step 6: Final answer
   x = 63,077.07