Finding the Fourth Proportional to 113,412.48, 156,499.04 and 65,669.06

Step by Step Solution

1. Step 1: Write the proportion equation
   113,412.48 : 156,499.04 = 65,669.06 : x
2. Step 2: Convert to fraction form
   113,412.48/156,499.04 = 65,669.06/x
3. Step 3: Cross multiply
   113,412.48x = 156,499.04 × 65,669.06
4. Step 4: Simplify right side
   113,412.48x = 10,277,144,847.70
5. Step 5: Solve for x
   x = 10,277,144,847.70/113,412.48
6. Step 6: Final answer
   x = 90,617.41