Finding the Fourth Proportional to 112,358.48, 168,538.17 and 28,118.41

Step by Step Solution

1. Step 1: Write the proportion equation
   112,358.48 : 168,538.17 = 28,118.41 : x
2. Step 2: Convert to fraction form
   112,358.48/168,538.17 = 28,118.41/x
3. Step 3: Cross multiply
   112,358.48x = 168,538.17 × 28,118.41
4. Step 4: Simplify right side
   112,358.48x = 4,739,024,522.02
5. Step 5: Solve for x
   x = 4,739,024,522.02/112,358.48
6. Step 6: Final answer
   x = 42,177.72