Finding the Fourth Proportional to 91,649, 137,294.52 and 63,180.92

Step by Step Solution

1. Step 1: Write the proportion equation
   91,649 : 137,294.52 = 63,180.92 : x
2. Step 2: Convert to fraction form
   91,649/137,294.52 = 63,180.92/x
3. Step 3: Cross multiply
   91,649x = 137,294.52 × 63,180.92
4. Step 4: Simplify right side
   91,649x = 8,674,394,084.56
5. Step 5: Solve for x
   x = 8,674,394,084.56/91,649
6. Step 6: Final answer
   x = 94,647.99