Finding the Fourth Proportional to 131,619, 181,634.94 and 72,003

Step by Step Solution

1. Step 1: Write the proportion equation
   131,619 : 181,634.94 = 72,003 : x
2. Step 2: Convert to fraction form
   131,619/181,634.94 = 72,003/x
3. Step 3: Cross multiply
   131,619x = 181,634.94 × 72,003
4. Step 4: Simplify right side
   131,619x = 13,078,260,584.82
5. Step 5: Solve for x
   x = 13,078,260,584.82/131,619
6. Step 6: Final answer
   x = 99,364.53