Finding the Fourth Proportional to 187,878.32, 259,266.72 and 107,304.18

Step by Step Solution

1. Step 1: Write the proportion equation
   187,878.32 : 259,266.72 = 107,304.18 : x
2. Step 2: Convert to fraction form
   187,878.32/259,266.72 = 107,304.18/x
3. Step 3: Cross multiply
   187,878.32x = 259,266.72 × 107,304.18
4. Step 4: Simplify right side
   187,878.32x = 27,820,402,790.89
5. Step 5: Solve for x
   x = 27,820,402,790.89/187,878.32
6. Step 6: Final answer
   x = 148,076.71