Finding the Fourth Proportional to 208,749.78, 313,141.59 and 58,991.31

Step by Step Solution

1. Step 1: Write the proportion equation
   208,749.78 : 313,141.59 = 58,991.31 : x
2. Step 2: Convert to fraction form
   208,749.78/313,141.59 = 58,991.31/x
3. Step 3: Cross multiply
   208,749.78x = 313,141.59 × 58,991.31
4. Step 4: Simplify right side
   208,749.78x = 18,472,632,609.58
5. Step 5: Solve for x
   x = 18,472,632,609.58/208,749.78
6. Step 6: Final answer
   x = 88,491.75