Finding the Fourth Proportional to 49,639.10, 68,502.42 and 26,978.15

Step by Step Solution

1. Step 1: Write the proportion equation
   49,639.10 : 68,502.42 = 26,978.15 : x
2. Step 2: Convert to fraction form
   49,639.10/68,502.42 = 26,978.15/x
3. Step 3: Cross multiply
   49,639.10x = 68,502.42 × 26,978.15
4. Step 4: Simplify right side
   49,639.10x = 1,848,068,760.65
5. Step 5: Solve for x
   x = 1,848,068,760.65/49,639.10
6. Step 6: Final answer
   x = 37,230.10