Finding the Fourth Proportional to 119,147.99, 164,423.79 and 65,436.48

Step by Step Solution

1. Step 1: Write the proportion equation
   119,147.99 : 164,423.79 = 65,436.48 : x
2. Step 2: Convert to fraction form
   119,147.99/164,423.79 = 65,436.48/x
3. Step 3: Cross multiply
   119,147.99x = 164,423.79 × 65,436.48
4. Step 4: Simplify right side
   119,147.99x = 10,759,314,045.86
5. Step 5: Solve for x
   x = 10,759,314,045.86/119,147.99
6. Step 6: Final answer
   x = 90,302.11