Finding the Fourth Proportional to 123,699.56, 185,235.32 and 103,656.38

Step by Step Solution

1. Step 1: Write the proportion equation
   123,699.56 : 185,235.32 = 103,656.38 : x
2. Step 2: Convert to fraction form
   123,699.56/185,235.32 = 103,656.38/x
3. Step 3: Cross multiply
   123,699.56x = 185,235.32 × 103,656.38
4. Step 4: Simplify right side
   123,699.56x = 19,200,822,052.31
5. Step 5: Solve for x
   x = 19,200,822,052.31/123,699.56
6. Step 6: Final answer
   x = 155,221.43