Finding the Fourth Proportional to 91,016.42, 136,586.14 and 31,852.61

Step by Step Solution

1. Step 1: Write the proportion equation
   91,016.42 : 136,586.14 = 31,852.61 : x
2. Step 2: Convert to fraction form
   91,016.42/136,586.14 = 31,852.61/x
3. Step 3: Cross multiply
   91,016.42x = 136,586.14 × 31,852.61
4. Step 4: Simplify right side
   91,016.42x = 4,350,625,048.83
5. Step 5: Solve for x
   x = 4,350,625,048.83/91,016.42
6. Step 6: Final answer
   x = 47,800.44