Finding the Fourth Proportional to 82,988.25, 124,418.57 and 42,964.32

Step by Step Solution

1. Step 1: Write the proportion equation
   82,988.25 : 124,418.57 = 42,964.32 : x
2. Step 2: Convert to fraction form
   82,988.25/124,418.57 = 42,964.32/x
3. Step 3: Cross multiply
   82,988.25x = 124,418.57 × 42,964.32
4. Step 4: Simplify right side
   82,988.25x = 5,345,559,507.17
5. Step 5: Solve for x
   x = 5,345,559,507.17/82,988.25
6. Step 6: Final answer
   x = 64,413.45