Finding the Fourth Proportional to 116,840.75, 161,251.61 and 69,109.47

Step by Step Solution

1. Step 1: Write the proportion equation
   116,840.75 : 161,251.61 = 69,109.47 : x
2. Step 2: Convert to fraction form
   116,840.75/161,251.61 = 69,109.47/x
3. Step 3: Cross multiply
   116,840.75x = 161,251.61 × 69,109.47
4. Step 4: Simplify right side
   116,840.75x = 11,144,013,303.75
5. Step 5: Solve for x
   x = 11,144,013,303.75/116,840.75
6. Step 6: Final answer
   x = 95,377.80