Finding the Fourth Proportional to 113,139.51, 156,185.58 and 65,383.53

Step by Step Solution

1. Step 1: Write the proportion equation
   113,139.51 : 156,185.58 = 65,383.53 : x
2. Step 2: Convert to fraction form
   113,139.51/156,185.58 = 65,383.53/x
3. Step 3: Cross multiply
   113,139.51x = 156,185.58 × 65,383.53
4. Step 4: Simplify right side
   113,139.51x = 10,211,964,555.50
5. Step 5: Solve for x
   x = 10,211,964,555.50/113,139.51
6. Step 6: Final answer
   x = 90,259.93