Finding the Fourth Proportional to 28,492.67, 42,726.69 and 9,774.56

Step by Step Solution

1. Step 1: Write the proportion equation
   28,492.67 : 42,726.69 = 9,774.56 : x
2. Step 2: Convert to fraction form
   28,492.67/42,726.69 = 9,774.56/x
3. Step 3: Cross multiply
   28,492.67x = 42,726.69 × 9,774.56
4. Step 4: Simplify right side
   28,492.67x = 417,634,701.82
5. Step 5: Solve for x
   x = 417,634,701.82/28,492.67
6. Step 6: Final answer
   x = 14,657.62