Finding the Fourth Proportional to 42,973.35, 64,452.57 and 11,801.31

Step by Step Solution

1. Step 1: Write the proportion equation
   42,973.35 : 64,452.57 = 11,801.31 : x
2. Step 2: Convert to fraction form
   42,973.35/64,452.57 = 11,801.31/x
3. Step 3: Cross multiply
   42,973.35x = 64,452.57 × 11,801.31
4. Step 4: Simplify right side
   42,973.35x = 760,624,758.87
5. Step 5: Solve for x
   x = 760,624,758.87/42,973.35
6. Step 6: Final answer
   x = 17,699.92