Finding the Fourth Proportional to 112,818.87, 155,648.79 and 67,498.11

Step by Step Solution

1. Step 1: Write the proportion equation
   112,818.87 : 155,648.79 = 67,498.11 : x
2. Step 2: Convert to fraction form
   112,818.87/155,648.79 = 67,498.11/x
3. Step 3: Cross multiply
   112,818.87x = 155,648.79 × 67,498.11
4. Step 4: Simplify right side
   112,818.87x = 10,505,999,148.79
5. Step 5: Solve for x
   x = 10,505,999,148.79/112,818.87
6. Step 6: Final answer
   x = 93,122.71