Finding the Fourth Proportional to 112,477.38, 155,240.37 and 72,241.98

Step by Step Solution

1. Step 1: Write the proportion equation
   112,477.38 : 155,240.37 = 72,241.98 : x
2. Step 2: Convert to fraction form
   112,477.38/155,240.37 = 72,241.98/x
3. Step 3: Cross multiply
   112,477.38x = 155,240.37 × 72,241.98
4. Step 4: Simplify right side
   112,477.38x = 11,214,871,704.73
5. Step 5: Solve for x
   x = 11,214,871,704.73/112,477.38
6. Step 6: Final answer
   x = 99,707.80