Finding the Fourth Proportional to 78,906.93, 118,360.71 and 19,742.43

Step by Step Solution

1. Step 1: Write the proportion equation
   78,906.93 : 118,360.71 = 19,742.43 : x
2. Step 2: Convert to fraction form
   78,906.93/118,360.71 = 19,742.43/x
3. Step 3: Cross multiply
   78,906.93x = 118,360.71 × 19,742.43
4. Step 4: Simplify right side
   78,906.93x = 2,336,728,475.78
5. Step 5: Solve for x
   x = 2,336,728,475.78/78,906.93
6. Step 6: Final answer
   x = 29,613.73