Finding the Fourth Proportional to 131,577, 181,580.58 and 71,961

Step by Step Solution

1. Step 1: Write the proportion equation
   131,577 : 181,580.58 = 71,961 : x
2. Step 2: Convert to fraction form
   131,577/181,580.58 = 71,961/x
3. Step 3: Cross multiply
   131,577x = 181,580.58 × 71,961
4. Step 4: Simplify right side
   131,577x = 13,066,720,117.38
5. Step 5: Solve for x
   x = 13,066,720,117.38/131,577
6. Step 6: Final answer
   x = 99,308.54