Finding the Fourth Proportional to 28,335.96, 42,499.16 and 9,354.72

Step by Step Solution

1. Step 1: Write the proportion equation
   28,335.96 : 42,499.16 = 9,354.72 : x
2. Step 2: Convert to fraction form
   28,335.96/42,499.16 = 9,354.72/x
3. Step 3: Cross multiply
   28,335.96x = 42,499.16 × 9,354.72
4. Step 4: Simplify right side
   28,335.96x = 397,567,695.26
5. Step 5: Solve for x
   x = 397,567,695.26/28,335.96
6. Step 6: Final answer
   x = 14,030.50