Finding the Fourth Proportional to 65,605.33, 90,316.24 and 62,592.47

Step by Step Solution

1. Step 1: Write the proportion equation
   65,605.33 : 90,316.24 = 62,592.47 : x
2. Step 2: Convert to fraction form
   65,605.33/90,316.24 = 62,592.47/x
3. Step 3: Cross multiply
   65,605.33x = 90,316.24 × 62,592.47
4. Step 4: Simplify right side
   65,605.33x = 5,653,116,542.71
5. Step 5: Solve for x
   x = 5,653,116,542.71/65,605.33
6. Step 6: Final answer
   x = 86,168.56