Finding the Fourth Proportional to 89,404.39, 123,347.03 and 57,157.88

Step by Step Solution

1. Step 1: Write the proportion equation
   89,404.39 : 123,347.03 = 57,157.88 : x
2. Step 2: Convert to fraction form
   89,404.39/123,347.03 = 57,157.88/x
3. Step 3: Cross multiply
   89,404.39x = 123,347.03 × 57,157.88
4. Step 4: Simplify right side
   89,404.39x = 7,050,254,881.99
5. Step 5: Solve for x
   x = 7,050,254,881.99/89,404.39
6. Step 6: Final answer
   x = 78,858.04