Finding the Fourth Proportional to 137,065.42, 189,151.59 and 80,477.74

Step by Step Solution

1. Step 1: Write the proportion equation
   137,065.42 : 189,151.59 = 80,477.74 : x
2. Step 2: Convert to fraction form
   137,065.42/189,151.59 = 80,477.74/x
3. Step 3: Cross multiply
   137,065.42x = 189,151.59 × 80,477.74
4. Step 4: Simplify right side
   137,065.42x = 15,222,492,480.61
5. Step 5: Solve for x
   x = 15,222,492,480.61/137,065.42
6. Step 6: Final answer
   x = 111,060.05