Finding the Fourth Proportional to 123,993.32, 185,985.86 and 53,872.63

Step by Step Solution

1. Step 1: Write the proportion equation
   123,993.32 : 185,985.86 = 53,872.63 : x
2. Step 2: Convert to fraction form
   123,993.32/185,985.86 = 53,872.63/x
3. Step 3: Cross multiply
   123,993.32x = 185,985.86 × 53,872.63
4. Step 4: Simplify right side
   123,993.32x = 10,019,546,686.68
5. Step 5: Solve for x
   x = 10,019,546,686.68/123,993.32
6. Step 6: Final answer
   x = 80,807.15