Finding the Fourth Proportional to 109,180.86, 150,672.53 and 61,435.89

Step by Step Solution

1. Step 1: Write the proportion equation
   109,180.86 : 150,672.53 = 61,435.89 : x
2. Step 2: Convert to fraction form
   109,180.86/150,672.53 = 61,435.89/x
3. Step 3: Cross multiply
   109,180.86x = 150,672.53 × 61,435.89
4. Step 4: Simplify right side
   109,180.86x = 9,256,700,671.92
5. Step 5: Solve for x
   x = 9,256,700,671.92/109,180.86
6. Step 6: Final answer
   x = 84,783.18