Finding the Fourth Proportional to 52,429.67, 72,354.35 and 28,557.88

Step by Step Solution

1. Step 1: Write the proportion equation
   52,429.67 : 72,354.35 = 28,557.88 : x
2. Step 2: Convert to fraction form
   52,429.67/72,354.35 = 28,557.88/x
3. Step 3: Cross multiply
   52,429.67x = 72,354.35 × 28,557.88
4. Step 4: Simplify right side
   52,429.67x = 2,066,286,735.29
5. Step 5: Solve for x
   x = 2,066,286,735.29/52,429.67
6. Step 6: Final answer
   x = 39,410.64