Finding the Fourth Proportional to 72,479.58, 99,992.27 and 48,613.95

Step by Step Solution

1. Step 1: Write the proportion equation
   72,479.58 : 99,992.27 = 48,613.95 : x
2. Step 2: Convert to fraction form
   72,479.58/99,992.27 = 48,613.95/x
3. Step 3: Cross multiply
   72,479.58x = 99,992.27 × 48,613.95
4. Step 4: Simplify right side
   72,479.58x = 4,861,018,971.10
5. Step 5: Solve for x
   x = 4,861,018,971.10/72,479.58
6. Step 6: Final answer
   x = 67,067.43