Finding the Fourth Proportional to 28,066.84, 42,068.43 and 9,342.47

Step by Step Solution

1. Step 1: Write the proportion equation
   28,066.84 : 42,068.43 = 9,342.47 : x
2. Step 2: Convert to fraction form
   28,066.84/42,068.43 = 9,342.47/x
3. Step 3: Cross multiply
   28,066.84x = 42,068.43 × 9,342.47
4. Step 4: Simplify right side
   28,066.84x = 393,023,150.39
5. Step 5: Solve for x
   x = 393,023,150.39/28,066.84
6. Step 6: Final answer
   x = 14,003.11