Finding the Fourth Proportional to 113,598.10, 156,765.98 and 65,196.16

Step by Step Solution

1. Step 1: Write the proportion equation
   113,598.10 : 156,765.98 = 65,196.16 : x
2. Step 2: Convert to fraction form
   113,598.10/156,765.98 = 65,196.16/x
3. Step 3: Cross multiply
   113,598.10x = 156,765.98 × 65,196.16
4. Step 4: Simplify right side
   113,598.10x = 10,220,539,914.64
5. Step 5: Solve for x
   x = 10,220,539,914.64/113,598.10
6. Step 6: Final answer
   x = 89,971.05