Finding the Fourth Proportional to 151,770.15, 212,789.25 and 151,770.15

Step by Step Solution

1. Step 1: Write the proportion equation
   151,770.15 : 212,789.25 = 151,770.15 : x
2. Step 2: Convert to fraction form
   151,770.15/212,789.25 = 151,770.15/x
3. Step 3: Cross multiply
   151,770.15x = 212,789.25 × 151,770.15
4. Step 4: Simplify right side
   151,770.15x = 32,295,056,390.89
5. Step 5: Solve for x
   x = 32,295,056,390.89/151,770.15
6. Step 6: Final answer
   x = 212,789.25