Finding the Fourth Proportional to 116,899.20, 161,300.16 and 69,154.56

Step by Step Solution

1. Step 1: Write the proportion equation
   116,899.20 : 161,300.16 = 69,154.56 : x
2. Step 2: Convert to fraction form
   116,899.20/161,300.16 = 69,154.56/x
3. Step 3: Cross multiply
   116,899.20x = 161,300.16 × 69,154.56
4. Step 4: Simplify right side
   116,899.20x = 11,154,641,592.73
5. Step 5: Solve for x
   x = 11,154,641,592.73/116,899.20
6. Step 6: Final answer
   x = 95,421.03