Finding the Fourth Proportional to 103,667.77, 143,105.67 and 69,695.97

Step by Step Solution

1. Step 1: Write the proportion equation
   103,667.77 : 143,105.67 = 69,695.97 : x
2. Step 2: Convert to fraction form
   103,667.77/143,105.67 = 69,695.97/x
3. Step 3: Cross multiply
   103,667.77x = 143,105.67 × 69,695.97
4. Step 4: Simplify right side
   103,667.77x = 9,973,888,483.15
5. Step 5: Solve for x
   x = 9,973,888,483.15/103,667.77
6. Step 6: Final answer
   x = 96,210.12