Finding the Fourth Proportional to 205,050.72, 307,625.76 and 99,845.76

Step by Step Solution

1. Step 1: Write the proportion equation
   205,050.72 : 307,625.76 = 99,845.76 : x
2. Step 2: Convert to fraction form
   205,050.72/307,625.76 = 99,845.76/x
3. Step 3: Cross multiply
   205,050.72x = 307,625.76 × 99,845.76
4. Step 4: Simplify right side
   205,050.72x = 30,715,127,802.78
5. Step 5: Solve for x
   x = 30,715,127,802.78/205,050.72
6. Step 6: Final answer
   x = 149,792.83