Finding the Fourth Proportional to 151,722,008.72, 209,377,031.78 and 82,107,395.72

Step by Step Solution

1. Step 1: Write the proportion equation
   151,722,008.72 : 209,377,031.78 = 82,107,395.72 : x
2. Step 2: Convert to fraction form
   151,722,008.72/209,377,031.78 = 82,107,395.72/x
3. Step 3: Cross multiply
   151,722,008.72x = 209,377,031.78 × 82,107,395.72
4. Step 4: Simplify right side
   151,722,008.72x = 17,191,402,803,039,476
5. Step 5: Solve for x
   x = 17,191,402,803,039,476/151,722,008.72
6. Step 6: Final answer
   x = 113,308,563.13