Finding the Fourth Proportional to 28,601.34, 42,901.39 and 7,824.84

Step by Step Solution

1. Step 1: Write the proportion equation
   28,601.34 : 42,901.39 = 7,824.84 : x
2. Step 2: Convert to fraction form
   28,601.34/42,901.39 = 7,824.84/x
3. Step 3: Cross multiply
   28,601.34x = 42,901.39 × 7,824.84
4. Step 4: Simplify right side
   28,601.34x = 335,696,512.53
5. Step 5: Solve for x
   x = 335,696,512.53/28,601.34
6. Step 6: Final answer
   x = 11,737.09