Finding the Fourth Proportional to 48,642.86, 72,480.72 and 43,337.09

Step by Step Solution

1. Step 1: Write the proportion equation
   48,642.86 : 72,480.72 = 43,337.09 : x
2. Step 2: Convert to fraction form
   48,642.86/72,480.72 = 43,337.09/x
3. Step 3: Cross multiply
   48,642.86x = 72,480.72 × 43,337.09
4. Step 4: Simplify right side
   48,642.86x = 3,141,103,829.62
5. Step 5: Solve for x
   x = 3,141,103,829.62/48,642.86
6. Step 6: Final answer
   x = 64,574.81