Finding the Fourth Proportional to 109,188.24, 150,667.56 and 61,458

Step by Step Solution

1. Step 1: Write the proportion equation
   109,188.24 : 150,667.56 = 61,458 : x
2. Step 2: Convert to fraction form
   109,188.24/150,667.56 = 61,458/x
3. Step 3: Cross multiply
   109,188.24x = 150,667.56 × 61,458
4. Step 4: Simplify right side
   109,188.24x = 9,259,726,902.48
5. Step 5: Solve for x
   x = 9,259,726,902.48/109,188.24
6. Step 6: Final answer
   x = 84,805.17