Finding the Fourth Proportional to 64,930.31, 89,605.23 and 35,858.59

Step by Step Solution

1. Step 1: Write the proportion equation
   64,930.31 : 89,605.23 = 35,858.59 : x
2. Step 2: Convert to fraction form
   64,930.31/89,605.23 = 35,858.59/x
3. Step 3: Cross multiply
   64,930.31x = 89,605.23 × 35,858.59
4. Step 4: Simplify right side
   64,930.31x = 3,213,117,047.65
5. Step 5: Solve for x
   x = 3,213,117,047.65/64,930.31
6. Step 6: Final answer
   x = 49,485.62