Finding the Fourth Proportional to 91,570.86, 137,245.38 and 38,869.68

Step by Step Solution

1. Step 1: Write the proportion equation
   91,570.86 : 137,245.38 = 38,869.68 : x
2. Step 2: Convert to fraction form
   91,570.86/137,245.38 = 38,869.68/x
3. Step 3: Cross multiply
   91,570.86x = 137,245.38 × 38,869.68
4. Step 4: Simplify right side
   91,570.86x = 5,334,684,002.08
5. Step 5: Solve for x
   x = 5,334,684,002.08/91,570.86
6. Step 6: Final answer
   x = 58,257.44