Finding the Fourth Proportional to 91,868.19, 137,672.82 and 73,064.85

Step by Step Solution

1. Step 1: Write the proportion equation
   91,868.19 : 137,672.82 = 73,064.85 : x
2. Step 2: Convert to fraction form
   91,868.19/137,672.82 = 73,064.85/x
3. Step 3: Cross multiply
   91,868.19x = 137,672.82 × 73,064.85
4. Step 4: Simplify right side
   91,868.19x = 10,059,043,942.38
5. Step 5: Solve for x
   x = 10,059,043,942.38/91,868.19
6. Step 6: Final answer
   x = 109,494.31