Finding the Fourth Proportional to 91,053.92, 136,593.34 and 31,066.31

Step by Step Solution

1. Step 1: Write the proportion equation
   91,053.92 : 136,593.34 = 31,066.31 : x
2. Step 2: Convert to fraction form
   91,053.92/136,593.34 = 31,066.31/x
3. Step 3: Cross multiply
   91,053.92x = 136,593.34 × 31,066.31
4. Step 4: Simplify right side
   91,053.92x = 4,243,451,308.19
5. Step 5: Solve for x
   x = 4,243,451,308.19/91,053.92
6. Step 6: Final answer
   x = 46,603.72