Finding the Fourth Proportional to 152,003.70, 212,960.70 and 152,003.70

Step by Step Solution

1. Step 1: Write the proportion equation
   152,003.70 : 212,960.70 = 152,003.70 : x
2. Step 2: Convert to fraction form
   152,003.70/212,960.70 = 152,003.70/x
3. Step 3: Cross multiply
   152,003.70x = 212,960.70 × 152,003.70
4. Step 4: Simplify right side
   152,003.70x = 32,370,814,354.59
5. Step 5: Solve for x
   x = 32,370,814,354.59/152,003.70
6. Step 6: Final answer
   x = 212,960.70