Finding the Fourth Proportional to 216,113,647.81, 298,236,933.90 and 116,994,395.30

Step by Step Solution

1. Step 1: Write the proportion equation
   216,113,647.81 : 298,236,933.90 = 116,994,395.30 : x
2. Step 2: Convert to fraction form
   216,113,647.81/298,236,933.90 = 116,994,395.30/x
3. Step 3: Cross multiply
   216,113,647.81x = 298,236,933.90 × 116,994,395.30
4. Step 4: Simplify right side
   216,113,647.81x = 34,892,049,739,613,668
5. Step 5: Solve for x
   x = 34,892,049,739,613,668/216,113,647.81
6. Step 6: Final answer
   x = 161,452,319.62