Finding the Fourth Proportional to 109,196.64, 150,678.99 and 61,448.76

Step by Step Solution

1. Step 1: Write the proportion equation
   109,196.64 : 150,678.99 = 61,448.76 : x
2. Step 2: Convert to fraction form
   109,196.64/150,678.99 = 61,448.76/x
3. Step 3: Cross multiply
   109,196.64x = 150,678.99 × 61,448.76
4. Step 4: Simplify right side
   109,196.64x = 9,259,037,093.55
5. Step 5: Solve for x
   x = 9,259,037,093.55/109,196.64
6. Step 6: Final answer
   x = 84,792.33