Finding the Fourth Proportional to 43,192.47, 64,678.55 and 34,440.15

Step by Step Solution

1. Step 1: Write the proportion equation
   43,192.47 : 64,678.55 = 34,440.15 : x
2. Step 2: Convert to fraction form
   43,192.47/64,678.55 = 34,440.15/x
3. Step 3: Cross multiply
   43,192.47x = 64,678.55 × 34,440.15
4. Step 4: Simplify right side
   43,192.47x = 2,227,538,791.58
5. Step 5: Solve for x
   x = 2,227,538,791.58/43,192.47
6. Step 6: Final answer
   x = 51,572.39