Finding the Fourth Proportional to 91,004.28, 136,513.32 and 31,014.11

Step by Step Solution

1. Step 1: Write the proportion equation
   91,004.28 : 136,513.32 = 31,014.11 : x
2. Step 2: Convert to fraction form
   91,004.28/136,513.32 = 31,014.11/x
3. Step 3: Cross multiply
   91,004.28x = 136,513.32 × 31,014.11
4. Step 4: Simplify right side
   91,004.28x = 4,233,838,727.32
5. Step 5: Solve for x
   x = 4,233,838,727.32/91,004.28
6. Step 6: Final answer
   x = 46,523.51