Finding the Fourth Proportional to 111,509.45, 153,885.33 and 63,111.38

Step by Step Solution

1. Step 1: Write the proportion equation
   111,509.45 : 153,885.33 = 63,111.38 : x
2. Step 2: Convert to fraction form
   111,509.45/153,885.33 = 63,111.38/x
3. Step 3: Cross multiply
   111,509.45x = 153,885.33 × 63,111.38
4. Step 4: Simplify right side
   111,509.45x = 9,711,915,293.83
5. Step 5: Solve for x
   x = 9,711,915,293.83/111,509.45
6. Step 6: Final answer
   x = 87,095.00