Finding the Fourth Proportional to 72,462,318.42, 99,998,434.29 and 39,422,804.56

Step by Step Solution

1. Step 1: Write the proportion equation
   72,462,318.42 : 99,998,434.29 = 39,422,804.56 : x
2. Step 2: Convert to fraction form
   72,462,318.42/99,998,434.29 = 39,422,804.56/x
3. Step 3: Cross multiply
   72,462,318.42x = 99,998,434.29 × 39,422,804.56
4. Step 4: Simplify right side
   72,462,318.42x = 3,942,218,731,320,673
5. Step 5: Solve for x
   x = 3,942,218,731,320,673/72,462,318.42
6. Step 6: Final answer
   x = 54,403,706.88