Finding the Fourth Proportional to 146,407.77, 201,964.59 and 89,064.63

Step by Step Solution

1. Step 1: Write the proportion equation
   146,407.77 : 201,964.59 = 89,064.63 : x
2. Step 2: Convert to fraction form
   146,407.77/201,964.59 = 89,064.63/x
3. Step 3: Cross multiply
   146,407.77x = 201,964.59 × 89,064.63
4. Step 4: Simplify right side
   146,407.77x = 17,987,901,481.45
5. Step 5: Solve for x
   x = 17,987,901,481.45/146,407.77
6. Step 6: Final answer
   x = 122,861.66