Finding the Fourth Proportional to 86,681.98, 130,016.49 and 31,277.98

Step by Step Solution

1. Step 1: Write the proportion equation
   86,681.98 : 130,016.49 = 31,277.98 : x
2. Step 2: Convert to fraction form
   86,681.98/130,016.49 = 31,277.98/x
3. Step 3: Cross multiply
   86,681.98x = 130,016.49 × 31,277.98
4. Step 4: Simplify right side
   86,681.98x = 4,066,653,173.89
5. Step 5: Solve for x
   x = 4,066,653,173.89/86,681.98
6. Step 6: Final answer
   x = 46,914.63