Finding the Fourth Proportional to 58,667.39, 80,959.70 and 31,809.21

Step by Step Solution

1. Step 1: Write the proportion equation
   58,667.39 : 80,959.70 = 31,809.21 : x
2. Step 2: Convert to fraction form
   58,667.39/80,959.70 = 31,809.21/x
3. Step 3: Cross multiply
   58,667.39x = 80,959.70 × 31,809.21
4. Step 4: Simplify right side
   58,667.39x = 2,575,263,874.76
5. Step 5: Solve for x
   x = 2,575,263,874.76/58,667.39
6. Step 6: Final answer
   x = 43,896.00