Finding the Fourth Proportional to 131,693, 181,736.34 and 72,077

Step by Step Solution

1. Step 1: Write the proportion equation
   131,693 : 181,736.34 = 72,077 : x
2. Step 2: Convert to fraction form
   131,693/181,736.34 = 72,077/x
3. Step 3: Cross multiply
   131,693x = 181,736.34 × 72,077
4. Step 4: Simplify right side
   131,693x = 13,099,010,178.18
5. Step 5: Solve for x
   x = 13,099,010,178.18/131,693
6. Step 6: Final answer
   x = 99,466.26