Finding the Fourth Proportional to 58,796.32, 81,138.06 and 31,939.18

Step by Step Solution

1. Step 1: Write the proportion equation
   58,796.32 : 81,138.06 = 31,939.18 : x
2. Step 2: Convert to fraction form
   58,796.32/81,138.06 = 31,939.18/x
3. Step 3: Cross multiply
   58,796.32x = 81,138.06 × 31,939.18
4. Step 4: Simplify right side
   58,796.32x = 2,591,483,103.19
5. Step 5: Solve for x
   x = 2,591,483,103.19/58,796.32
6. Step 6: Final answer
   x = 44,075.60