Finding the Fourth Proportional to 113,149.63, 156,149 and 65,404.99

Step by Step Solution

1. Step 1: Write the proportion equation
   113,149.63 : 156,149 = 65,404.99 : x
2. Step 2: Convert to fraction form
   113,149.63/156,149 = 65,404.99/x
3. Step 3: Cross multiply
   113,149.63x = 156,149 × 65,404.99
4. Step 4: Simplify right side
   113,149.63x = 10,212,923,783.51
5. Step 5: Solve for x
   x = 10,212,923,783.51/113,149.63
6. Step 6: Final answer
   x = 90,260.34