Finding the Fourth Proportional to 64,036.55, 96,057.60 and 19,665.05

Step by Step Solution

1. Step 1: Write the proportion equation
   64,036.55 : 96,057.60 = 19,665.05 : x
2. Step 2: Convert to fraction form
   64,036.55/96,057.60 = 19,665.05/x
3. Step 3: Cross multiply
   64,036.55x = 96,057.60 × 19,665.05
4. Step 4: Simplify right side
   64,036.55x = 1,888,977,763.33
5. Step 5: Solve for x
   x = 1,888,977,763.33/64,036.55
6. Step 6: Final answer
   x = 29,498.43