Finding the Fourth Proportional to 108,892.42, 150,272.47 and 61,150.21

Step by Step Solution

1. Step 1: Write the proportion equation
   108,892.42 : 150,272.47 = 61,150.21 : x
2. Step 2: Convert to fraction form
   108,892.42/150,272.47 = 61,150.21/x
3. Step 3: Cross multiply
   108,892.42x = 150,272.47 × 61,150.21
4. Step 4: Simplify right side
   108,892.42x = 9,189,192,454.51
5. Step 5: Solve for x
   x = 9,189,192,454.51/108,892.42
6. Step 6: Final answer
   x = 84,387.81