Finding the Fourth Proportional to 106,789.82, 160,475.72 and 56,905.56

Step by Step Solution

1. Step 1: Write the proportion equation
   106,789.82 : 160,475.72 = 56,905.56 : x
2. Step 2: Convert to fraction form
   106,789.82/160,475.72 = 56,905.56/x
3. Step 3: Cross multiply
   106,789.82x = 160,475.72 × 56,905.56
4. Step 4: Simplify right side
   106,789.82x = 9,131,960,713.00
5. Step 5: Solve for x
   x = 9,131,960,713.00/106,789.82
6. Step 6: Final answer
   x = 85,513.40