Finding the Fourth Proportional to 49,985.46, 68,979.98 and 28,764.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,985.46 : 68,979.98 = 28,764.72 : x
2. Step 2: Convert to fraction form
   49,985.46/68,979.98 = 28,764.72/x
3. Step 3: Cross multiply
   49,985.46x = 68,979.98 × 28,764.72
4. Step 4: Simplify right side
   49,985.46x = 1,984,189,666.48
5. Step 5: Solve for x
   x = 1,984,189,666.48/49,985.46
6. Step 6: Final answer
   x = 39,695.34