Finding the Fourth Proportional to 60,994.32, 91,502.61 and 18,871.54

Step by Step Solution

1. Step 1: Write the proportion equation
   60,994.32 : 91,502.61 = 18,871.54 : x
2. Step 2: Convert to fraction form
   60,994.32/91,502.61 = 18,871.54/x
3. Step 3: Cross multiply
   60,994.32x = 91,502.61 × 18,871.54
4. Step 4: Simplify right side
   60,994.32x = 1,726,795,164.72
5. Step 5: Solve for x
   x = 1,726,795,164.72/60,994.32
6. Step 6: Final answer
   x = 28,310.75