Finding the Fourth Proportional to 78,776,502.15, 118,286,404.43 and 42,944,694.15

Step by Step Solution

1. Step 1: Write the proportion equation
   78,776,502.15 : 118,286,404.43 = 42,944,694.15 : x
2. Step 2: Convert to fraction form
   78,776,502.15/118,286,404.43 = 42,944,694.15/x
3. Step 3: Cross multiply
   78,776,502.15x = 118,286,404.43 × 42,944,694.15
4. Step 4: Simplify right side
   78,776,502.15x = 5,079,773,460,134,831
5. Step 5: Solve for x
   x = 5,079,773,460,134,831/78,776,502.15
6. Step 6: Final answer
   x = 64,483,358.89