Finding the Fourth Proportional to 131,626, 181,643.88 and 72,010

Step by Step Solution

1. Step 1: Write the proportion equation
   131,626 : 181,643.88 = 72,010 : x
2. Step 2: Convert to fraction form
   131,626/181,643.88 = 72,010/x
3. Step 3: Cross multiply
   131,626x = 181,643.88 × 72,010
4. Step 4: Simplify right side
   131,626x = 13,080,175,798.80
5. Step 5: Solve for x
   x = 13,080,175,798.80/131,626
6. Step 6: Final answer
   x = 99,373.80