Finding the Fourth Proportional to 191,063.21, 286,597.57 and 72,741.05

Step by Step Solution

1. Step 1: Write the proportion equation
   191,063.21 : 286,597.57 = 72,741.05 : x
2. Step 2: Convert to fraction form
   191,063.21/286,597.57 = 72,741.05/x
3. Step 3: Cross multiply
   191,063.21x = 286,597.57 × 72,741.05
4. Step 4: Simplify right side
   191,063.21x = 20,847,408,169.25
5. Step 5: Solve for x
   x = 20,847,408,169.25/191,063.21
6. Step 6: Final answer
   x = 109,112.62