Finding the Fourth Proportional to 91,994.69, 138,045.56 and 38,682.81

Step by Step Solution

1. Step 1: Write the proportion equation
   91,994.69 : 138,045.56 = 38,682.81 : x
2. Step 2: Convert to fraction form
   91,994.69/138,045.56 = 38,682.81/x
3. Step 3: Cross multiply
   91,994.69x = 138,045.56 × 38,682.81
4. Step 4: Simplify right side
   91,994.69x = 5,339,989,975.41
5. Step 5: Solve for x
   x = 5,339,989,975.41/91,994.69
6. Step 6: Final answer
   x = 58,046.72