Finding the Fourth Proportional to 92,042.82, 137,392.25 and 78,979.14

Step by Step Solution

1. Step 1: Write the proportion equation
   92,042.82 : 137,392.25 = 78,979.14 : x
2. Step 2: Convert to fraction form
   92,042.82/137,392.25 = 78,979.14/x
3. Step 3: Cross multiply
   92,042.82x = 137,392.25 × 78,979.14
4. Step 4: Simplify right side
   92,042.82x = 10,851,121,352.77
5. Step 5: Solve for x
   x = 10,851,121,352.77/92,042.82
6. Step 6: Final answer
   x = 117,892.10