Finding the Fourth Proportional to 111,308.70, 166,961.29 and 35,406.17

Step by Step Solution

1. Step 1: Write the proportion equation
   111,308.70 : 166,961.29 = 35,406.17 : x
2. Step 2: Convert to fraction form
   111,308.70/166,961.29 = 35,406.17/x
3. Step 3: Cross multiply
   111,308.70x = 166,961.29 × 35,406.17
4. Step 4: Simplify right side
   111,308.70x = 5,911,459,817.16
5. Step 5: Solve for x
   x = 5,911,459,817.16/111,308.70
6. Step 6: Final answer
   x = 53,108.70