Finding the Fourth Proportional to 123,693.06, 170,714.73 and 78,375.24

Step by Step Solution

1. Step 1: Write the proportion equation
   123,693.06 : 170,714.73 = 78,375.24 : x
2. Step 2: Convert to fraction form
   123,693.06/170,714.73 = 78,375.24/x
3. Step 3: Cross multiply
   123,693.06x = 170,714.73 × 78,375.24
4. Step 4: Simplify right side
   123,693.06x = 13,379,807,935.29
5. Step 5: Solve for x
   x = 13,379,807,935.29/123,693.06
6. Step 6: Final answer
   x = 108,169.43