Finding the Fourth Proportional to 86,681.34, 130,059.57 and 30,561.54

Step by Step Solution

1. Step 1: Write the proportion equation
   86,681.34 : 130,059.57 = 30,561.54 : x
2. Step 2: Convert to fraction form
   86,681.34/130,059.57 = 30,561.54/x
3. Step 3: Cross multiply
   86,681.34x = 130,059.57 × 30,561.54
4. Step 4: Simplify right side
   86,681.34x = 3,974,820,377.82
5. Step 5: Solve for x
   x = 3,974,820,377.82/86,681.34
6. Step 6: Final answer
   x = 45,855.55