Finding the Fourth Proportional to 152,238.10, 213,599.90 and 152,238.10

Step by Step Solution

1. Step 1: Write the proportion equation
   152,238.10 : 213,599.90 = 152,238.10 : x
2. Step 2: Convert to fraction form
   152,238.10/213,599.90 = 152,238.10/x
3. Step 3: Cross multiply
   152,238.10x = 213,599.90 × 152,238.10
4. Step 4: Simplify right side
   152,238.10x = 32,518,042,936.19
5. Step 5: Solve for x
   x = 32,518,042,936.19/152,238.10
6. Step 6: Final answer
   x = 213,599.90