Finding the Fourth Proportional to 345,262,554.50, 476,462,516.36 and 186,492,676.72

Step by Step Solution

1. Step 1: Write the proportion equation
   345,262,554.50 : 476,462,516.36 = 186,492,676.72 : x
2. Step 2: Convert to fraction form
   345,262,554.50/476,462,516.36 = 186,492,676.72/x
3. Step 3: Cross multiply
   345,262,554.50x = 476,462,516.36 × 186,492,676.72
4. Step 4: Simplify right side
   345,262,554.50x = 88,856,770,031,998,272
5. Step 5: Solve for x
   x = 88,856,770,031,998,272/345,262,554.50
6. Step 6: Final answer
   x = 257,359,997.12