Finding the Fourth Proportional to 111,389.05, 153,725.04 and 63,641.38

Step by Step Solution

1. Step 1: Write the proportion equation
   111,389.05 : 153,725.04 = 63,641.38 : x
2. Step 2: Convert to fraction form
   111,389.05/153,725.04 = 63,641.38/x
3. Step 3: Cross multiply
   111,389.05x = 153,725.04 × 63,641.38
4. Step 4: Simplify right side
   111,389.05x = 9,783,272,599.32
5. Step 5: Solve for x
   x = 9,783,272,599.32/111,389.05
6. Step 6: Final answer
   x = 87,829.75