Finding the Fourth Proportional to 82,991.93, 114,538.55 and 47,187.31

Step by Step Solution

1. Step 1: Write the proportion equation
   82,991.93 : 114,538.55 = 47,187.31 : x
2. Step 2: Convert to fraction form
   82,991.93/114,538.55 = 47,187.31/x
3. Step 3: Cross multiply
   82,991.93x = 114,538.55 × 47,187.31
4. Step 4: Simplify right side
   82,991.93x = 5,404,765,257.17
5. Step 5: Solve for x
   x = 5,404,765,257.17/82,991.93
6. Step 6: Final answer
   x = 65,123.99