Finding the Fourth Proportional to 64,795, 89,455.98 and 42,477.88

Step by Step Solution

1. Step 1: Write the proportion equation
   64,795 : 89,455.98 = 42,477.88 : x
2. Step 2: Convert to fraction form
   64,795/89,455.98 = 42,477.88/x
3. Step 3: Cross multiply
   64,795x = 89,455.98 × 42,477.88
4. Step 4: Simplify right side
   64,795x = 3,799,900,383.72
5. Step 5: Solve for x
   x = 3,799,900,383.72/64,795
6. Step 6: Final answer
   x = 58,644.96