Finding the Fourth Proportional to 148,524.72, 204,955.56 and 81,456.72

Step by Step Solution

1. Step 1: Write the proportion equation
   148,524.72 : 204,955.56 = 81,456.72 : x
2. Step 2: Convert to fraction form
   148,524.72/204,955.56 = 81,456.72/x
3. Step 3: Cross multiply
   148,524.72x = 204,955.56 × 81,456.72
4. Step 4: Simplify right side
   148,524.72x = 16,695,007,663.36
5. Step 5: Solve for x
   x = 16,695,007,663.36/148,524.72
6. Step 6: Final answer
   x = 112,405.58