Finding the Fourth Proportional to 230,300.93, 345,499.99 and 72,545.33

Step by Step Solution

1. Step 1: Write the proportion equation
   230,300.93 : 345,499.99 = 72,545.33 : x
2. Step 2: Convert to fraction form
   230,300.93/345,499.99 = 72,545.33/x
3. Step 3: Cross multiply
   230,300.93x = 345,499.99 × 72,545.33
4. Step 4: Simplify right side
   230,300.93x = 25,064,408,880.68
5. Step 5: Solve for x
   x = 25,064,408,880.68/230,300.93
6. Step 6: Final answer
   x = 108,833.30