Finding the Fourth Proportional to 113,383.60, 156,475.84 and 64,993.59

Step by Step Solution

1. Step 1: Write the proportion equation
   113,383.60 : 156,475.84 = 64,993.59 : x
2. Step 2: Convert to fraction form
   113,383.60/156,475.84 = 64,993.59/x
3. Step 3: Cross multiply
   113,383.60x = 156,475.84 × 64,993.59
4. Step 4: Simplify right side
   113,383.60x = 10,169,926,589.87
5. Step 5: Solve for x
   x = 10,169,926,589.87/113,383.60
6. Step 6: Final answer
   x = 89,694.86