Finding the Fourth Proportional to 111,389.37, 153,725.48 and 63,641.69

Step by Step Solution

1. Step 1: Write the proportion equation
   111,389.37 : 153,725.48 = 63,641.69 : x
2. Step 2: Convert to fraction form
   111,389.37/153,725.48 = 63,641.69/x
3. Step 3: Cross multiply
   111,389.37x = 153,725.48 × 63,641.69
4. Step 4: Simplify right side
   111,389.37x = 9,783,348,256.43
5. Step 5: Solve for x
   x = 9,783,348,256.43/111,389.37
6. Step 6: Final answer
   x = 87,830.18