Finding the Fourth Proportional to 42,772.62, 64,162.52 and 15,762.32

Step by Step Solution

1. Step 1: Write the proportion equation
   42,772.62 : 64,162.52 = 15,762.32 : x
2. Step 2: Convert to fraction form
   42,772.62/64,162.52 = 15,762.32/x
3. Step 3: Cross multiply
   42,772.62x = 64,162.52 × 15,762.32
4. Step 4: Simplify right side
   42,772.62x = 1,011,350,172.25
5. Step 5: Solve for x
   x = 1,011,350,172.25/42,772.62
6. Step 6: Final answer
   x = 23,644.80