Finding the Fourth Proportional to 89,427.33, 123,409.35 and 51,186.69

Step by Step Solution

1. Step 1: Write the proportion equation
   89,427.33 : 123,409.35 = 51,186.69 : x
2. Step 2: Convert to fraction form
   89,427.33/123,409.35 = 51,186.69/x
3. Step 3: Cross multiply
   89,427.33x = 123,409.35 × 51,186.69
4. Step 4: Simplify right side
   89,427.33x = 6,316,916,141.55
5. Step 5: Solve for x
   x = 6,316,916,141.55/89,427.33
6. Step 6: Final answer
   x = 70,637.42