Finding the Fourth Proportional to 113,518.49, 156,655.56 and 65,799.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,518.49 : 156,655.56 = 65,799.50 : x
2. Step 2: Convert to fraction form
   113,518.49/156,655.56 = 65,799.50/x
3. Step 3: Cross multiply
   113,518.49x = 156,655.56 × 65,799.50
4. Step 4: Simplify right side
   113,518.49x = 10,307,857,520.22
5. Step 5: Solve for x
   x = 10,307,857,520.22/113,518.49
6. Step 6: Final answer
   x = 90,803.34