Finding the Fourth Proportional to 111,103.54, 153,322.78 and 62,715.65

Step by Step Solution

1. Step 1: Write the proportion equation
   111,103.54 : 153,322.78 = 62,715.65 : x
2. Step 2: Convert to fraction form
   111,103.54/153,322.78 = 62,715.65/x
3. Step 3: Cross multiply
   111,103.54x = 153,322.78 × 62,715.65
4. Step 4: Simplify right side
   111,103.54x = 9,615,737,807.51
5. Step 5: Solve for x
   x = 9,615,737,807.51/111,103.54
6. Step 6: Final answer
   x = 86,547.54