Finding the Fourth Proportional to 117,405,839.69, 162,020,349.88 and 65,194,870.63

Step by Step Solution

1. Step 1: Write the proportion equation
   117,405,839.69 : 162,020,349.88 = 65,194,870.63 : x
2. Step 2: Convert to fraction form
   117,405,839.69/162,020,349.88 = 65,194,870.63/x
3. Step 3: Cross multiply
   117,405,839.69x = 162,020,349.88 × 65,194,870.63
4. Step 4: Simplify right side
   117,405,839.69x = 10,562,895,749,285,898
5. Step 5: Solve for x
   x = 10,562,895,749,285,898/117,405,839.69
6. Step 6: Final answer
   x = 89,969,083.11