Finding the Fourth Proportional to 72,216.36, 99,672.37 and 48,384.59

Step by Step Solution

1. Step 1: Write the proportion equation
   72,216.36 : 99,672.37 = 48,384.59 : x
2. Step 2: Convert to fraction form
   72,216.36/99,672.37 = 48,384.59/x
3. Step 3: Cross multiply
   72,216.36x = 99,672.37 × 48,384.59
4. Step 4: Simplify right side
   72,216.36x = 4,822,606,137.45
5. Step 5: Solve for x
   x = 4,822,606,137.45/72,216.36
6. Step 6: Final answer
   x = 66,779.97