Finding the Fourth Proportional to 91,013.37, 136,581.56 and 31,849.55

Step by Step Solution

1. Step 1: Write the proportion equation
   91,013.37 : 136,581.56 = 31,849.55 : x
2. Step 2: Convert to fraction form
   91,013.37/136,581.56 = 31,849.55/x
3. Step 3: Cross multiply
   91,013.37x = 136,581.56 × 31,849.55
4. Step 4: Simplify right side
   91,013.37x = 4,350,060,382.14
5. Step 5: Solve for x
   x = 4,350,060,382.14/91,013.37
6. Step 6: Final answer
   x = 47,795.84