Finding the Fourth Proportional to 113,597.51, 156,739.28 and 65,196.46

Step by Step Solution

1. Step 1: Write the proportion equation
   113,597.51 : 156,739.28 = 65,196.46 : x
2. Step 2: Convert to fraction form
   113,597.51/156,739.28 = 65,196.46/x
3. Step 3: Cross multiply
   113,597.51x = 156,739.28 × 65,196.46
4. Step 4: Simplify right side
   113,597.51x = 10,218,845,481.12
5. Step 5: Solve for x
   x = 10,218,845,481.12/113,597.51
6. Step 6: Final answer
   x = 89,956.60