Finding the Fourth Proportional to 131,399.36, 181,331.06 and 70,969.98

Step by Step Solution

1. Step 1: Write the proportion equation
   131,399.36 : 181,331.06 = 70,969.98 : x
2. Step 2: Convert to fraction form
   131,399.36/181,331.06 = 70,969.98/x
3. Step 3: Cross multiply
   131,399.36x = 181,331.06 × 70,969.98
4. Step 4: Simplify right side
   131,399.36x = 12,869,061,701.58
5. Step 5: Solve for x
   x = 12,869,061,701.58/131,399.36
6. Step 6: Final answer
   x = 97,938.54