Finding the Fourth Proportional to 131,730, 181,791.96 and 72,114

Step by Step Solution

1. Step 1: Write the proportion equation
   131,730 : 181,791.96 = 72,114 : x
2. Step 2: Convert to fraction form
   131,730/181,791.96 = 72,114/x
3. Step 3: Cross multiply
   131,730x = 181,791.96 × 72,114
4. Step 4: Simplify right side
   131,730x = 13,109,745,403.44
5. Step 5: Solve for x
   x = 13,109,745,403.44/131,730
6. Step 6: Final answer
   x = 99,519.82