Finding the Fourth Proportional to 113,397.98, 156,479.04 and 65,654.55

Step by Step Solution

1. Step 1: Write the proportion equation
   113,397.98 : 156,479.04 = 65,654.55 : x
2. Step 2: Convert to fraction form
   113,397.98/156,479.04 = 65,654.55/x
3. Step 3: Cross multiply
   113,397.98x = 156,479.04 × 65,654.55
4. Step 4: Simplify right side
   113,397.98x = 10,273,560,955.63
5. Step 5: Solve for x
   x = 10,273,560,955.63/113,397.98
6. Step 6: Final answer
   x = 90,597.39