Finding the Fourth Proportional to 103,446.52, 155,215.86 and 54,187

Step by Step Solution

1. Step 1: Write the proportion equation
   103,446.52 : 155,215.86 = 54,187 : x
2. Step 2: Convert to fraction form
   103,446.52/155,215.86 = 54,187/x
3. Step 3: Cross multiply
   103,446.52x = 155,215.86 × 54,187
4. Step 4: Simplify right side
   103,446.52x = 8,410,681,805.82
5. Step 5: Solve for x
   x = 8,410,681,805.82/103,446.52
6. Step 6: Final answer
   x = 81,304.64