Finding the Fourth Proportional to 91,158.89, 136,799.48 and 31,994.73

Step by Step Solution

1. Step 1: Write the proportion equation
   91,158.89 : 136,799.48 = 31,994.73 : x
2. Step 2: Convert to fraction form
   91,158.89/136,799.48 = 31,994.73/x
3. Step 3: Cross multiply
   91,158.89x = 136,799.48 × 31,994.73
4. Step 4: Simplify right side
   91,158.89x = 4,376,862,506.73
5. Step 5: Solve for x
   x = 4,376,862,506.73/91,158.89
6. Step 6: Final answer
   x = 48,013.56