Finding the Fourth Proportional to 77,709,340.38, 107,287,286.69 and 49,467,648.34

Step by Step Solution

1. Step 1: Write the proportion equation
   77,709,340.38 : 107,287,286.69 = 49,467,648.34 : x
2. Step 2: Convert to fraction form
   77,709,340.38/107,287,286.69 = 49,467,648.34/x
3. Step 3: Cross multiply
   77,709,340.38x = 107,287,286.69 × 49,467,648.34
4. Step 4: Simplify right side
   77,709,340.38x = 5,307,249,769,003,630
5. Step 5: Solve for x
   x = 5,307,249,769,003,630/77,709,340.38
6. Step 6: Final answer
   x = 68,296,162.89