Finding the Fourth Proportional to 28,444.86, 42,662.43 and 7,663.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,444.86 : 42,662.43 = 7,663.50 : x
2. Step 2: Convert to fraction form
   28,444.86/42,662.43 = 7,663.50/x
3. Step 3: Cross multiply
   28,444.86x = 42,662.43 × 7,663.50
4. Step 4: Simplify right side
   28,444.86x = 326,943,532.31
5. Step 5: Solve for x
   x = 326,943,532.31/28,444.86
6. Step 6: Final answer
   x = 11,493.94