Finding the Fourth Proportional to 72,253.63, 99,805.32 and 55,465.33

Step by Step Solution

1. Step 1: Write the proportion equation
   72,253.63 : 99,805.32 = 55,465.33 : x
2. Step 2: Convert to fraction form
   72,253.63/99,805.32 = 55,465.33/x
3. Step 3: Cross multiply
   72,253.63x = 99,805.32 × 55,465.33
4. Step 4: Simplify right side
   72,253.63x = 5,535,735,009.56
5. Step 5: Solve for x
   x = 5,535,735,009.56/72,253.63
6. Step 6: Final answer
   x = 76,615.32