Finding the Fourth Proportional to 91,551.33, 137,086.70 and 73,687.05

Step by Step Solution

1. Step 1: Write the proportion equation
   91,551.33 : 137,086.70 = 73,687.05 : x
2. Step 2: Convert to fraction form
   91,551.33/137,086.70 = 73,687.05/x
3. Step 3: Cross multiply
   91,551.33x = 137,086.70 × 73,687.05
4. Step 4: Simplify right side
   91,551.33x = 10,101,514,148.80
5. Step 5: Solve for x
   x = 10,101,514,148.80/91,551.33
6. Step 6: Final answer
   x = 110,337.16