Finding the Fourth Proportional to 91,309.46, 136,773.72 and 73,443.63

Step by Step Solution

1. Step 1: Write the proportion equation
   91,309.46 : 136,773.72 = 73,443.63 : x
2. Step 2: Convert to fraction form
   91,309.46/136,773.72 = 73,443.63/x
3. Step 3: Cross multiply
   91,309.46x = 136,773.72 × 73,443.63
4. Step 4: Simplify right side
   91,309.46x = 10,045,158,485.40
5. Step 5: Solve for x
   x = 10,045,158,485.40/91,309.46
6. Step 6: Final answer
   x = 110,012.25