Finding the Fourth Proportional to 113,423.58, 156,533.58 and 65,677.77

Step by Step Solution

1. Step 1: Write the proportion equation
   113,423.58 : 156,533.58 = 65,677.77 : x
2. Step 2: Convert to fraction form
   113,423.58/156,533.58 = 65,677.77/x
3. Step 3: Cross multiply
   113,423.58x = 156,533.58 × 65,677.77
4. Step 4: Simplify right side
   113,423.58x = 10,280,776,464.52
5. Step 5: Solve for x
   x = 10,280,776,464.52/113,423.58
6. Step 6: Final answer
   x = 90,640.56