Finding the Fourth Proportional to 113,656.45, 156,835.20 and 65,904.63

Step by Step Solution

1. Step 1: Write the proportion equation
   113,656.45 : 156,835.20 = 65,904.63 : x
2. Step 2: Convert to fraction form
   113,656.45/156,835.20 = 65,904.63/x
3. Step 3: Cross multiply
   113,656.45x = 156,835.20 × 65,904.63
4. Step 4: Simplify right side
   113,656.45x = 10,336,165,826.98
5. Step 5: Solve for x
   x = 10,336,165,826.98/113,656.45
6. Step 6: Final answer
   x = 90,942.18