Finding the Fourth Proportional to 113,605.52, 156,776.36 and 65,194.53

Step by Step Solution

1. Step 1: Write the proportion equation
   113,605.52 : 156,776.36 = 65,194.53 : x
2. Step 2: Convert to fraction form
   113,605.52/156,776.36 = 65,194.53/x
3. Step 3: Cross multiply
   113,605.52x = 156,776.36 × 65,194.53
4. Step 4: Simplify right side
   113,605.52x = 10,220,960,779.34
5. Step 5: Solve for x
   x = 10,220,960,779.34/113,605.52
6. Step 6: Final answer
   x = 89,968.88