Finding the Fourth Proportional to 189,389.52, 284,211 and 78,581.52

Step by Step Solution

1. Step 1: Write the proportion equation
   189,389.52 : 284,211 = 78,581.52 : x
2. Step 2: Convert to fraction form
   189,389.52/284,211 = 78,581.52/x
3. Step 3: Cross multiply
   189,389.52x = 284,211 × 78,581.52
4. Step 4: Simplify right side
   189,389.52x = 22,333,732,380.72
5. Step 5: Solve for x
   x = 22,333,732,380.72/189,389.52
6. Step 6: Final answer
   x = 117,924.86