Finding the Fourth Proportional to 113,418, 156,506.62 and 65,674.56

Step by Step Solution

1. Step 1: Write the proportion equation
   113,418 : 156,506.62 = 65,674.56 : x
2. Step 2: Convert to fraction form
   113,418/156,506.62 = 65,674.56/x
3. Step 3: Cross multiply
   113,418x = 156,506.62 × 65,674.56
4. Step 4: Simplify right side
   113,418x = 10,278,503,405.59
5. Step 5: Solve for x
   x = 10,278,503,405.59/113,418
6. Step 6: Final answer
   x = 90,624.97