Finding the Fourth Proportional to 58,191.54, 80,335.01 and 39,171.31

Step by Step Solution

1. Step 1: Write the proportion equation
   58,191.54 : 80,335.01 = 39,171.31 : x
2. Step 2: Convert to fraction form
   58,191.54/80,335.01 = 39,171.31/x
3. Step 3: Cross multiply
   58,191.54x = 80,335.01 × 39,171.31
4. Step 4: Simplify right side
   58,191.54x = 3,146,827,580.56
5. Step 5: Solve for x
   x = 3,146,827,580.56/58,191.54
6. Step 6: Final answer
   x = 54,077.06