Finding the Fourth Proportional to 89,667.84, 123,825.60 and 56,192.16

Step by Step Solution

1. Step 1: Write the proportion equation
   89,667.84 : 123,825.60 = 56,192.16 : x
2. Step 2: Convert to fraction form
   89,667.84/123,825.60 = 56,192.16/x
3. Step 3: Cross multiply
   89,667.84x = 123,825.60 × 56,192.16
4. Step 4: Simplify right side
   89,667.84x = 6,958,027,927.30
5. Step 5: Solve for x
   x = 6,958,027,927.30/89,667.84
6. Step 6: Final answer
   x = 77,597.81