Finding the Fourth Proportional to 89,349.32, 123,276.90 and 57,536.68

Step by Step Solution

1. Step 1: Write the proportion equation
   89,349.32 : 123,276.90 = 57,536.68 : x
2. Step 2: Convert to fraction form
   89,349.32/123,276.90 = 57,536.68/x
3. Step 3: Cross multiply
   89,349.32x = 123,276.90 × 57,536.68
4. Step 4: Simplify right side
   89,349.32x = 7,092,943,546.69
5. Step 5: Solve for x
   x = 7,092,943,546.69/89,349.32
6. Step 6: Final answer
   x = 79,384.42