Finding the Fourth Proportional to 86,973.32, 130,425.94 and 30,791.72

Step by Step Solution

1. Step 1: Write the proportion equation
   86,973.32 : 130,425.94 = 30,791.72 : x
2. Step 2: Convert to fraction form
   86,973.32/130,425.94 = 30,791.72/x
3. Step 3: Cross multiply
   86,973.32x = 130,425.94 × 30,791.72
4. Step 4: Simplify right side
   86,973.32x = 4,016,039,025.22
5. Step 5: Solve for x
   x = 4,016,039,025.22/86,973.32
6. Step 6: Final answer
   x = 46,175.53