Finding the Fourth Proportional to 109,175.78, 150,665.52 and 61,430.83

Step by Step Solution

1. Step 1: Write the proportion equation
   109,175.78 : 150,665.52 = 61,430.83 : x
2. Step 2: Convert to fraction form
   109,175.78/150,665.52 = 61,430.83/x
3. Step 3: Cross multiply
   109,175.78x = 150,665.52 × 61,430.83
4. Step 4: Simplify right side
   109,175.78x = 9,255,507,799.68
5. Step 5: Solve for x
   x = 9,255,507,799.68/109,175.78
6. Step 6: Final answer
   x = 84,776.20