Finding the Fourth Proportional to 91,111.33, 136,665.93 and 31,139.24

Step by Step Solution

1. Step 1: Write the proportion equation
   91,111.33 : 136,665.93 = 31,139.24 : x
2. Step 2: Convert to fraction form
   91,111.33/136,665.93 = 31,139.24/x
3. Step 3: Cross multiply
   91,111.33x = 136,665.93 × 31,139.24
4. Step 4: Simplify right side
   91,111.33x = 4,255,672,627.54
5. Step 5: Solve for x
   x = 4,255,672,627.54/91,111.33
6. Step 6: Final answer
   x = 46,708.49