Finding the Fourth Proportional to 96,978.34, 145,467.67 and 30,423.71

Step by Step Solution

1. Step 1: Write the proportion equation
   96,978.34 : 145,467.67 = 30,423.71 : x
2. Step 2: Convert to fraction form
   96,978.34/145,467.67 = 30,423.71/x
3. Step 3: Cross multiply
   96,978.34x = 145,467.67 × 30,423.71
4. Step 4: Simplify right side
   96,978.34x = 4,425,665,479.12
5. Step 5: Solve for x
   x = 4,425,665,479.12/96,978.34
6. Step 6: Final answer
   x = 45,635.61