Finding the Fourth Proportional to 42,784.16, 64,192.67 and 17,817.53

Step by Step Solution

1. Step 1: Write the proportion equation
   42,784.16 : 64,192.67 = 17,817.53 : x
2. Step 2: Convert to fraction form
   42,784.16/64,192.67 = 17,817.53/x
3. Step 3: Cross multiply
   42,784.16x = 64,192.67 × 17,817.53
4. Step 4: Simplify right side
   42,784.16x = 1,143,754,413.45
5. Step 5: Solve for x
   x = 1,143,754,413.45/42,784.16
6. Step 6: Final answer
   x = 26,733.13