Finding the Fourth Proportional to 64,573.77, 89,112.65 and 39,079.83

Step by Step Solution

1. Step 1: Write the proportion equation
   64,573.77 : 89,112.65 = 39,079.83 : x
2. Step 2: Convert to fraction form
   64,573.77/89,112.65 = 39,079.83/x
3. Step 3: Cross multiply
   64,573.77x = 89,112.65 × 39,079.83
4. Step 4: Simplify right side
   64,573.77x = 3,482,507,017.45
5. Step 5: Solve for x
   x = 3,482,507,017.45/64,573.77
6. Step 6: Final answer
   x = 53,930.68