Finding the Fourth Proportional to 99,904.69, 137,868.38 and 57,463.22

Step by Step Solution

1. Step 1: Write the proportion equation
   99,904.69 : 137,868.38 = 57,463.22 : x
2. Step 2: Convert to fraction form
   99,904.69/137,868.38 = 57,463.22/x
3. Step 3: Cross multiply
   99,904.69x = 137,868.38 × 57,463.22
4. Step 4: Simplify right side
   99,904.69x = 7,922,361,323.83
5. Step 5: Solve for x
   x = 7,922,361,323.83/99,904.69
6. Step 6: Final answer
   x = 79,299.19