Finding the Fourth Proportional to 111,369, 153,689.25 and 61,069.08

Step by Step Solution

1. Step 1: Write the proportion equation
   111,369 : 153,689.25 = 61,069.08 : x
2. Step 2: Convert to fraction form
   111,369/153,689.25 = 61,069.08/x
3. Step 3: Cross multiply
   111,369x = 153,689.25 × 61,069.08
4. Step 4: Simplify right side
   111,369x = 9,385,661,103.39
5. Step 5: Solve for x
   x = 9,385,661,103.39/111,369
6. Step 6: Final answer
   x = 84,275.35