Finding the Fourth Proportional to 113,152.82, 156,178.95 and 65,399.27

Step by Step Solution

1. Step 1: Write the proportion equation
   113,152.82 : 156,178.95 = 65,399.27 : x
2. Step 2: Convert to fraction form
   113,152.82/156,178.95 = 65,399.27/x
3. Step 3: Cross multiply
   113,152.82x = 156,178.95 × 65,399.27
4. Step 4: Simplify right side
   113,152.82x = 10,213,989,319.37
5. Step 5: Solve for x
   x = 10,213,989,319.37/113,152.82
6. Step 6: Final answer
   x = 90,267.21