Finding the Fourth Proportional to 58,698.56, 87,969.98 and 31,976

Step by Step Solution

1. Step 1: Write the proportion equation
   58,698.56 : 87,969.98 = 31,976 : x
2. Step 2: Convert to fraction form
   58,698.56/87,969.98 = 31,976/x
3. Step 3: Cross multiply
   58,698.56x = 87,969.98 × 31,976
4. Step 4: Simplify right side
   58,698.56x = 2,812,928,080.48
5. Step 5: Solve for x
   x = 2,812,928,080.48/58,698.56
6. Step 6: Final answer
   x = 47,921.59