Finding the Fourth Proportional to 112,906.72, 169,027.88 and 75,373.72

Step by Step Solution

1. Step 1: Write the proportion equation
   112,906.72 : 169,027.88 = 75,373.72 : x
2. Step 2: Convert to fraction form
   112,906.72/169,027.88 = 75,373.72/x
3. Step 3: Cross multiply
   112,906.72x = 169,027.88 × 75,373.72
4. Step 4: Simplify right side
   112,906.72x = 12,740,260,099.31
5. Step 5: Solve for x
   x = 12,740,260,099.31/112,906.72
6. Step 6: Final answer
   x = 112,838.81