Finding the Fourth Proportional to 91,159.89, 136,800.98 and 31,995.73

Step by Step Solution

1. Step 1: Write the proportion equation
   91,159.89 : 136,800.98 = 31,995.73 : x
2. Step 2: Convert to fraction form
   91,159.89/136,800.98 = 31,995.73/x
3. Step 3: Cross multiply
   91,159.89x = 136,800.98 × 31,995.73
4. Step 4: Simplify right side
   91,159.89x = 4,377,047,219.82
5. Step 5: Solve for x
   x = 4,377,047,219.82/91,159.89
6. Step 6: Final answer
   x = 48,015.06