Finding the Fourth Proportional to 151,784.78, 212,809.73 and 151,784.78

Step by Step Solution

1. Step 1: Write the proportion equation
   151,784.78 : 212,809.73 = 151,784.78 : x
2. Step 2: Convert to fraction form
   151,784.78/212,809.73 = 151,784.78/x
3. Step 3: Cross multiply
   151,784.78x = 212,809.73 × 151,784.78
4. Step 4: Simplify right side
   151,784.78x = 32,301,276,226.94
5. Step 5: Solve for x
   x = 32,301,276,226.94/151,784.78
6. Step 6: Final answer
   x = 212,809.73