Finding the Fourth Proportional to 91,438.56, 125,904.69 and 80,044.29

Step by Step Solution

1. Step 1: Write the proportion equation
   91,438.56 : 125,904.69 = 80,044.29 : x
2. Step 2: Convert to fraction form
   91,438.56/125,904.69 = 80,044.29/x
3. Step 3: Cross multiply
   91,438.56x = 125,904.69 × 80,044.29
4. Step 4: Simplify right side
   91,438.56x = 10,077,951,518.72
5. Step 5: Solve for x
   x = 10,077,951,518.72/91,438.56
6. Step 6: Final answer
   x = 110,215.55