Finding the Fourth Proportional to 111,742.30, 154,209.91 and 69,314.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,742.30 : 154,209.91 = 69,314.50 : x
2. Step 2: Convert to fraction form
   111,742.30/154,209.91 = 69,314.50/x
3. Step 3: Cross multiply
   111,742.30x = 154,209.91 × 69,314.50
4. Step 4: Simplify right side
   111,742.30x = 10,688,982,035.65
5. Step 5: Solve for x
   x = 10,688,982,035.65/111,742.30
6. Step 6: Final answer
   x = 95,657.44