Finding the Fourth Proportional to 131,440,273.51, 181,375,404.78 and 72,701,674.42

Step by Step Solution

1. Step 1: Write the proportion equation
   131,440,273.51 : 181,375,404.78 = 72,701,674.42 : x
2. Step 2: Convert to fraction form
   131,440,273.51/181,375,404.78 = 72,701,674.42/x
3. Step 3: Cross multiply
   131,440,273.51x = 181,375,404.78 × 72,701,674.42
4. Step 4: Simplify right side
   131,440,273.51x = 13,186,295,626,111,272
5. Step 5: Solve for x
   x = 13,186,295,626,111,272/131,440,273.51
6. Step 6: Final answer
   x = 100,321,577.81