Finding the Fourth Proportional to 72,035.51, 99,410.59 and 39,770.03

Step by Step Solution

1. Step 1: Write the proportion equation
   72,035.51 : 99,410.59 = 39,770.03 : x
2. Step 2: Convert to fraction form
   72,035.51/99,410.59 = 39,770.03/x
3. Step 3: Cross multiply
   72,035.51x = 99,410.59 × 39,770.03
4. Step 4: Simplify right side
   72,035.51x = 3,953,561,550.14
5. Step 5: Solve for x
   x = 3,953,561,550.14/72,035.51
6. Step 6: Final answer
   x = 54,883.51