Finding the Fourth Proportional to 111,969.18, 154,510.38 and 61,668.18

Step by Step Solution

1. Step 1: Write the proportion equation
   111,969.18 : 154,510.38 = 61,668.18 : x
2. Step 2: Convert to fraction form
   111,969.18/154,510.38 = 61,668.18/x
3. Step 3: Cross multiply
   111,969.18x = 154,510.38 × 61,668.18
4. Step 4: Simplify right side
   111,969.18x = 9,528,373,925.71
5. Step 5: Solve for x
   x = 9,528,373,925.71/111,969.18
6. Step 6: Final answer
   x = 85,098.18