Finding the Fourth Proportional to 91,955.82, 137,932.85 and 54,488.93

Step by Step Solution

1. Step 1: Write the proportion equation
   91,955.82 : 137,932.85 = 54,488.93 : x
2. Step 2: Convert to fraction form
   91,955.82/137,932.85 = 54,488.93/x
3. Step 3: Cross multiply
   91,955.82x = 137,932.85 × 54,488.93
4. Step 4: Simplify right side
   91,955.82x = 7,515,813,089.59
5. Step 5: Solve for x
   x = 7,515,813,089.59/91,955.82
6. Step 6: Final answer
   x = 81,732.87