Finding the Fourth Proportional to 91,849.75, 137,646.27 and 49,638.83

Step by Step Solution

1. Step 1: Write the proportion equation
   91,849.75 : 137,646.27 = 49,638.83 : x
2. Step 2: Convert to fraction form
   91,849.75/137,646.27 = 49,638.83/x
3. Step 3: Cross multiply
   91,849.75x = 137,646.27 × 49,638.83
4. Step 4: Simplify right side
   91,849.75x = 6,832,599,108.43
5. Step 5: Solve for x
   x = 6,832,599,108.43/91,849.75
6. Step 6: Final answer
   x = 74,388.87