Finding the Fourth Proportional to 108,104.16, 149,140.72 and 72,237.36

Step by Step Solution

1. Step 1: Write the proportion equation
   108,104.16 : 149,140.72 = 72,237.36 : x
2. Step 2: Convert to fraction form
   108,104.16/149,140.72 = 72,237.36/x
3. Step 3: Cross multiply
   108,104.16x = 149,140.72 × 72,237.36
4. Step 4: Simplify right side
   108,104.16x = 10,773,531,881.30
5. Step 5: Solve for x
   x = 10,773,531,881.30/108,104.16
6. Step 6: Final answer
   x = 99,658.81