Finding the Fourth Proportional to 108,101.71, 149,137.41 and 72,234.91

Step by Step Solution

1. Step 1: Write the proportion equation
   108,101.71 : 149,137.41 = 72,234.91 : x
2. Step 2: Convert to fraction form
   108,101.71/149,137.41 = 72,234.91/x
3. Step 3: Cross multiply
   108,101.71x = 149,137.41 × 72,234.91
4. Step 4: Simplify right side
   108,101.71x = 10,772,927,388.98
5. Step 5: Solve for x
   x = 10,772,927,388.98/108,101.71
6. Step 6: Final answer
   x = 99,655.48