Finding the Fourth Proportional to 290,764,658.50, 436,150,786.72 and 96,676,073.68

Step by Step Solution

1. Step 1: Write the proportion equation
   290,764,658.50 : 436,150,786.72 = 96,676,073.68 : x
2. Step 2: Convert to fraction form
   290,764,658.50/436,150,786.72 = 96,676,073.68/x
3. Step 3: Cross multiply
   290,764,658.50x = 436,150,786.72 × 96,676,073.68
4. Step 4: Simplify right side
   290,764,658.50x = 42,165,345,592,532,688
5. Step 5: Solve for x
   x = 42,165,345,592,532,688/290,764,658.50
6. Step 6: Final answer
   x = 145,015,373.64