Finding the Fourth Proportional to 49,308.96, 68,018.76 and 30,432.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,308.96 : 68,018.76 = 30,432.72 : x
2. Step 2: Convert to fraction form
   49,308.96/68,018.76 = 30,432.72/x
3. Step 3: Cross multiply
   49,308.96x = 68,018.76 × 30,432.72
4. Step 4: Simplify right side
   49,308.96x = 2,069,995,877.83
5. Step 5: Solve for x
   x = 2,069,995,877.83/49,308.96
6. Step 6: Final answer
   x = 41,980.12