Finding the Fourth Proportional to 72,899.88, 108,950.38 and 53,219.88

Step by Step Solution

1. Step 1: Write the proportion equation
   72,899.88 : 108,950.38 = 53,219.88 : x
2. Step 2: Convert to fraction form
   72,899.88/108,950.38 = 53,219.88/x
3. Step 3: Cross multiply
   72,899.88x = 108,950.38 × 53,219.88
4. Step 4: Simplify right side
   72,899.88x = 5,798,326,149.55
5. Step 5: Solve for x
   x = 5,798,326,149.55/72,899.88
6. Step 6: Final answer
   x = 79,538.21