Finding the Fourth Proportional to 112,663,942.27, 168,704,863.83 and 77,756,769.15

Step by Step Solution

1. Step 1: Write the proportion equation
   112,663,942.27 : 168,704,863.83 = 77,756,769.15 : x
2. Step 2: Convert to fraction form
   112,663,942.27/168,704,863.83 = 77,756,769.15/x
3. Step 3: Cross multiply
   112,663,942.27x = 168,704,863.83 × 77,756,769.15
4. Step 4: Simplify right side
   112,663,942.27x = 13,117,945,150,678,852
5. Step 5: Solve for x
   x = 13,117,945,150,678,852/112,663,942.27
6. Step 6: Final answer
   x = 116,434,281.34