Finding the Fourth Proportional to 189,787.86, 284,783.31 and 123,212.34

Step by Step Solution

1. Step 1: Write the proportion equation
   189,787.86 : 284,783.31 = 123,212.34 : x
2. Step 2: Convert to fraction form
   189,787.86/284,783.31 = 123,212.34/x
3. Step 3: Cross multiply
   189,787.86x = 284,783.31 × 123,212.34
4. Step 4: Simplify right side
   189,787.86x = 35,088,818,018.05
5. Step 5: Solve for x
   x = 35,088,818,018.05/189,787.86
6. Step 6: Final answer
   x = 184,884.42