Finding the Fourth Proportional to 151,719.15, 212,013.15 and 151,719.15

Step by Step Solution

1. Step 1: Write the proportion equation
   151,719.15 : 212,013.15 = 151,719.15 : x
2. Step 2: Convert to fraction form
   151,719.15/212,013.15 = 151,719.15/x
3. Step 3: Cross multiply
   151,719.15x = 212,013.15 × 151,719.15
4. Step 4: Simplify right side
   151,719.15x = 32,166,454,906.82
5. Step 5: Solve for x
   x = 32,166,454,906.82/151,719.15
6. Step 6: Final answer
   x = 212,013.15