Finding the Fourth Proportional to 101,667.18, 140,415.72 and 69,346.62

Step by Step Solution

1. Step 1: Write the proportion equation
   101,667.18 : 140,415.72 = 69,346.62 : x
2. Step 2: Convert to fraction form
   101,667.18/140,415.72 = 69,346.62/x
3. Step 3: Cross multiply
   101,667.18x = 140,415.72 × 69,346.62
4. Step 4: Simplify right side
   101,667.18x = 9,737,355,576.87
5. Step 5: Solve for x
   x = 9,737,355,576.87/101,667.18
6. Step 6: Final answer
   x = 95,776.78