Finding the Fourth Proportional to 152,198.10, 213,543.90 and 152,198.10

Step by Step Solution

1. Step 1: Write the proportion equation
   152,198.10 : 213,543.90 = 152,198.10 : x
2. Step 2: Convert to fraction form
   152,198.10/213,543.90 = 152,198.10/x
3. Step 3: Cross multiply
   152,198.10x = 213,543.90 × 152,198.10
4. Step 4: Simplify right side
   152,198.10x = 32,500,975,846.59
5. Step 5: Solve for x
   x = 32,500,975,846.59/152,198.10
6. Step 6: Final answer
   x = 213,543.90