Finding the Fourth Proportional to 91,156.78, 136,653.90 and 49,059.46

Step by Step Solution

1. Step 1: Write the proportion equation
   91,156.78 : 136,653.90 = 49,059.46 : x
2. Step 2: Convert to fraction form
   91,156.78/136,653.90 = 49,059.46/x
3. Step 3: Cross multiply
   91,156.78x = 136,653.90 × 49,059.46
4. Step 4: Simplify right side
   91,156.78x = 6,704,166,540.89
5. Step 5: Solve for x
   x = 6,704,166,540.89/91,156.78
6. Step 6: Final answer
   x = 73,545.45