Finding the Fourth Proportional to 91,613.05, 137,333.42 and 49,429.92

Step by Step Solution

1. Step 1: Write the proportion equation
   91,613.05 : 137,333.42 = 49,429.92 : x
2. Step 2: Convert to fraction form
   91,613.05/137,333.42 = 49,429.92/x
3. Step 3: Cross multiply
   91,613.05x = 137,333.42 × 49,429.92
4. Step 4: Simplify right side
   91,613.05x = 6,788,380,308.93
5. Step 5: Solve for x
   x = 6,788,380,308.93/91,613.05
6. Step 6: Final answer
   x = 74,098.40