Finding the Fourth Proportional to 107,123, 147,768.18 and 66,817.40

Step by Step Solution

1. Step 1: Write the proportion equation
   107,123 : 147,768.18 = 66,817.40 : x
2. Step 2: Convert to fraction form
   107,123/147,768.18 = 66,817.40/x
3. Step 3: Cross multiply
   107,123x = 147,768.18 × 66,817.40
4. Step 4: Simplify right side
   107,123x = 9,873,485,590.33
5. Step 5: Solve for x
   x = 9,873,485,590.33/107,123
6. Step 6: Final answer
   x = 92,169.61