Finding the Fourth Proportional to 89,147.18, 123,036.66 and 56,895.71

Step by Step Solution

1. Step 1: Write the proportion equation
   89,147.18 : 123,036.66 = 56,895.71 : x
2. Step 2: Convert to fraction form
   89,147.18/123,036.66 = 56,895.71/x
3. Step 3: Cross multiply
   89,147.18x = 123,036.66 × 56,895.71
4. Step 4: Simplify right side
   89,147.18x = 7,000,257,842.25
5. Step 5: Solve for x
   x = 7,000,257,842.25/89,147.18
6. Step 6: Final answer
   x = 78,524.73