Finding the Fourth Proportional to 191,500.10, 287,269.18 and 73,270.88

Step by Step Solution

1. Step 1: Write the proportion equation
   191,500.10 : 287,269.18 = 73,270.88 : x
2. Step 2: Convert to fraction form
   191,500.10/287,269.18 = 73,270.88/x
3. Step 3: Cross multiply
   191,500.10x = 287,269.18 × 73,270.88
4. Step 4: Simplify right side
   191,500.10x = 21,048,463,995.96
5. Step 5: Solve for x
   x = 21,048,463,995.96/191,500.10
6. Step 6: Final answer
   x = 109,913.60