Finding the Fourth Proportional to 108,977.82, 150,385.59 and 66,607.26

Step by Step Solution

1. Step 1: Write the proportion equation
   108,977.82 : 150,385.59 = 66,607.26 : x
2. Step 2: Convert to fraction form
   108,977.82/150,385.59 = 66,607.26/x
3. Step 3: Cross multiply
   108,977.82x = 150,385.59 × 66,607.26
4. Step 4: Simplify right side
   108,977.82x = 10,016,772,093.38
5. Step 5: Solve for x
   x = 10,016,772,093.38/108,977.82
6. Step 6: Final answer
   x = 91,915.70