Finding the Fourth Proportional to 112,380.01, 155,048.42 and 80,119.87

Step by Step Solution

1. Step 1: Write the proportion equation
   112,380.01 : 155,048.42 = 80,119.87 : x
2. Step 2: Convert to fraction form
   112,380.01/155,048.42 = 80,119.87/x
3. Step 3: Cross multiply
   112,380.01x = 155,048.42 × 80,119.87
4. Step 4: Simplify right side
   112,380.01x = 12,422,459,254.11
5. Step 5: Solve for x
   x = 12,422,459,254.11/112,380.01
6. Step 6: Final answer
   x = 110,539.76