Finding the Fourth Proportional to 86,977.83, 130,451.32 and 39,581.89

Step by Step Solution

1. Step 1: Write the proportion equation
   86,977.83 : 130,451.32 = 39,581.89 : x
2. Step 2: Convert to fraction form
   86,977.83/130,451.32 = 39,581.89/x
3. Step 3: Cross multiply
   86,977.83x = 130,451.32 × 39,581.89
4. Step 4: Simplify right side
   86,977.83x = 5,163,509,944.50
5. Step 5: Solve for x
   x = 5,163,509,944.50/86,977.83
6. Step 6: Final answer
   x = 59,365.82