Finding the Fourth Proportional to 89,272.32, 133,936.56 and 56,015.52

Step by Step Solution

1. Step 1: Write the proportion equation
   89,272.32 : 133,936.56 = 56,015.52 : x
2. Step 2: Convert to fraction form
   89,272.32/133,936.56 = 56,015.52/x
3. Step 3: Cross multiply
   89,272.32x = 133,936.56 × 56,015.52
4. Step 4: Simplify right side
   89,272.32x = 7,502,526,055.41
5. Step 5: Solve for x
   x = 7,502,526,055.41/89,272.32
6. Step 6: Final answer
   x = 84,040.90