Finding the Fourth Proportional to 67,686.50, 93,407.38 and 37,878.50

Step by Step Solution

1. Step 1: Write the proportion equation
   67,686.50 : 93,407.38 = 37,878.50 : x
2. Step 2: Convert to fraction form
   67,686.50/93,407.38 = 37,878.50/x
3. Step 3: Cross multiply
   67,686.50x = 93,407.38 × 37,878.50
4. Step 4: Simplify right side
   67,686.50x = 3,538,131,443.33
5. Step 5: Solve for x
   x = 3,538,131,443.33/67,686.50
6. Step 6: Final answer
   x = 52,272.34