Finding the Fourth Proportional to 60,625.71, 90,882.32 and 30,978.18

Step by Step Solution

1. Step 1: Write the proportion equation
   60,625.71 : 90,882.32 = 30,978.18 : x
2. Step 2: Convert to fraction form
   60,625.71/90,882.32 = 30,978.18/x
3. Step 3: Cross multiply
   60,625.71x = 90,882.32 × 30,978.18
4. Step 4: Simplify right side
   60,625.71x = 2,815,368,712.89
5. Step 5: Solve for x
   x = 2,815,368,712.89/60,625.71
6. Step 6: Final answer
   x = 46,438.53