Finding the Fourth Proportional to 276,558.29, 414,881.17 and 99,061.37

Step by Step Solution

1. Step 1: Write the proportion equation
   276,558.29 : 414,881.17 = 99,061.37 : x
2. Step 2: Convert to fraction form
   276,558.29/414,881.17 = 99,061.37/x
3. Step 3: Cross multiply
   276,558.29x = 414,881.17 × 99,061.37
4. Step 4: Simplify right side
   276,558.29x = 41,098,696,878.37
5. Step 5: Solve for x
   x = 41,098,696,878.37/276,558.29
6. Step 6: Final answer
   x = 148,607.72