Finding the Fourth Proportional to 113,286.80, 156,347.73 and 64,892.59

Step by Step Solution

1. Step 1: Write the proportion equation
   113,286.80 : 156,347.73 = 64,892.59 : x
2. Step 2: Convert to fraction form
   113,286.80/156,347.73 = 64,892.59/x
3. Step 3: Cross multiply
   113,286.80x = 156,347.73 × 64,892.59
4. Step 4: Simplify right side
   113,286.80x = 10,145,808,034.12
5. Step 5: Solve for x
   x = 10,145,808,034.12/113,286.80
6. Step 6: Final answer
   x = 89,558.61