Finding the Fourth Proportional to 109,300.80, 150,840.72 and 66,846

Step by Step Solution

1. Step 1: Write the proportion equation
   109,300.80 : 150,840.72 = 66,846 : x
2. Step 2: Convert to fraction form
   109,300.80/150,840.72 = 66,846/x
3. Step 3: Cross multiply
   109,300.80x = 150,840.72 × 66,846
4. Step 4: Simplify right side
   109,300.80x = 10,083,098,769.12
5. Step 5: Solve for x
   x = 10,083,098,769.12/109,300.80
6. Step 6: Final answer
   x = 92,250.91