Finding the Fourth Proportional to 112,226.91, 168,334.89 and 42,100.75

Step by Step Solution

1. Step 1: Write the proportion equation
   112,226.91 : 168,334.89 = 42,100.75 : x
2. Step 2: Convert to fraction form
   112,226.91/168,334.89 = 42,100.75/x
3. Step 3: Cross multiply
   112,226.91x = 168,334.89 × 42,100.75
4. Step 4: Simplify right side
   112,226.91x = 7,087,025,120.17
5. Step 5: Solve for x
   x = 7,087,025,120.17/112,226.91
6. Step 6: Final answer
   x = 63,149.07