Finding the Fourth Proportional to 152,215.10, 213,567.70 and 152,215.10

Step by Step Solution

1. Step 1: Write the proportion equation
   152,215.10 : 213,567.70 = 152,215.10 : x
2. Step 2: Convert to fraction form
   152,215.10/213,567.70 = 152,215.10/x
3. Step 3: Cross multiply
   152,215.10x = 213,567.70 × 152,215.10
4. Step 4: Simplify right side
   152,215.10x = 32,508,228,812.27
5. Step 5: Solve for x
   x = 32,508,228,812.27/152,215.10
6. Step 6: Final answer
   x = 213,567.70