Finding the Fourth Proportional to 91,062.73, 136,510.89 and 31,866.11

Step by Step Solution

1. Step 1: Write the proportion equation
   91,062.73 : 136,510.89 = 31,866.11 : x
2. Step 2: Convert to fraction form
   91,062.73/136,510.89 = 31,866.11/x
3. Step 3: Cross multiply
   91,062.73x = 136,510.89 × 31,866.11
4. Step 4: Simplify right side
   91,062.73x = 4,350,071,036.94
5. Step 5: Solve for x
   x = 4,350,071,036.94/91,062.73
6. Step 6: Final answer
   x = 47,770.05