Finding the Fourth Proportional to 42,655.60, 63,891.06 and 30,943

Step by Step Solution

1. Step 1: Write the proportion equation
   42,655.60 : 63,891.06 = 30,943 : x
2. Step 2: Convert to fraction form
   42,655.60/63,891.06 = 30,943/x
3. Step 3: Cross multiply
   42,655.60x = 63,891.06 × 30,943
4. Step 4: Simplify right side
   42,655.60x = 1,976,981,069.58
5. Step 5: Solve for x
   x = 1,976,981,069.58/42,655.60
6. Step 6: Final answer
   x = 46,347.52