Finding the Fourth Proportional to 109,178.54, 150,669.32 and 61,433.58

Step by Step Solution

1. Step 1: Write the proportion equation
   109,178.54 : 150,669.32 = 61,433.58 : x
2. Step 2: Convert to fraction form
   109,178.54/150,669.32 = 61,433.58/x
3. Step 3: Cross multiply
   109,178.54x = 150,669.32 × 61,433.58
4. Step 4: Simplify right side
   109,178.54x = 9,256,155,723.77
5. Step 5: Solve for x
   x = 9,256,155,723.77/109,178.54
6. Step 6: Final answer
   x = 84,779.99