Finding the Fourth Proportional to 92,729.86, 127,870.95 and 79,345.42

Step by Step Solution

1. Step 1: Write the proportion equation
   92,729.86 : 127,870.95 = 79,345.42 : x
2. Step 2: Convert to fraction form
   92,729.86/127,870.95 = 79,345.42/x
3. Step 3: Cross multiply
   92,729.86x = 127,870.95 × 79,345.42
4. Step 4: Simplify right side
   92,729.86x = 10,145,974,233.55
5. Step 5: Solve for x
   x = 10,145,974,233.55/92,729.86
6. Step 6: Final answer
   x = 109,414.32