Finding the Fourth Proportional to 115,403.86, 159,283.90 and 67,672.59

Step by Step Solution

1. Step 1: Write the proportion equation
   115,403.86 : 159,283.90 = 67,672.59 : x
2. Step 2: Convert to fraction form
   115,403.86/159,283.90 = 67,672.59/x
3. Step 3: Cross multiply
   115,403.86x = 159,283.90 × 67,672.59
4. Step 4: Simplify right side
   115,403.86x = 10,779,153,829.27
5. Step 5: Solve for x
   x = 10,779,153,829.27/115,403.86
6. Step 6: Final answer
   x = 93,403.75