Finding the Fourth Proportional to 108,337.16, 149,545.48 and 81,557.34

Step by Step Solution

1. Step 1: Write the proportion equation
   108,337.16 : 149,545.48 = 81,557.34 : x
2. Step 2: Convert to fraction form
   108,337.16/149,545.48 = 81,557.34/x
3. Step 3: Cross multiply
   108,337.16x = 149,545.48 × 81,557.34
4. Step 4: Simplify right side
   108,337.16x = 12,196,531,557.82
5. Step 5: Solve for x
   x = 12,196,531,557.82/108,337.16
6. Step 6: Final answer
   x = 112,579.39