Finding the Fourth Proportional to 109,624.32, 151,155.45 and 80,985.42

Step by Step Solution

1. Step 1: Write the proportion equation
   109,624.32 : 151,155.45 = 80,985.42 : x
2. Step 2: Convert to fraction form
   109,624.32/151,155.45 = 80,985.42/x
3. Step 3: Cross multiply
   109,624.32x = 151,155.45 × 80,985.42
4. Step 4: Simplify right side
   109,624.32x = 12,241,387,603.54
5. Step 5: Solve for x
   x = 12,241,387,603.54/109,624.32
6. Step 6: Final answer
   x = 111,666.71