Finding the Fourth Proportional to 148,419.72, 204,818.58 and 81,351.72

Step by Step Solution

1. Step 1: Write the proportion equation
   148,419.72 : 204,818.58 = 81,351.72 : x
2. Step 2: Convert to fraction form
   148,419.72/204,818.58 = 81,351.72/x
3. Step 3: Cross multiply
   148,419.72x = 204,818.58 × 81,351.72
4. Step 4: Simplify right side
   148,419.72x = 16,662,343,770.96
5. Step 5: Solve for x
   x = 16,662,343,770.96/148,419.72
6. Step 6: Final answer
   x = 112,265.03