Finding the Fourth Proportional to 123,810.12, 185,781.06 and 73,987.56

Step by Step Solution

1. Step 1: Write the proportion equation
   123,810.12 : 185,781.06 = 73,987.56 : x
2. Step 2: Convert to fraction form
   123,810.12/185,781.06 = 73,987.56/x
3. Step 3: Cross multiply
   123,810.12x = 185,781.06 × 73,987.56
4. Step 4: Simplify right side
   123,810.12x = 13,745,487,323.61
5. Step 5: Solve for x
   x = 13,745,487,323.61/123,810.12
6. Step 6: Final answer
   x = 111,020.71