Finding the Fourth Proportional to 92,131.88, 137,524.93 and 79,068.20

Step by Step Solution

1. Step 1: Write the proportion equation
   92,131.88 : 137,524.93 = 79,068.20 : x
2. Step 2: Convert to fraction form
   92,131.88/137,524.93 = 79,068.20/x
3. Step 3: Cross multiply
   92,131.88x = 137,524.93 × 79,068.20
4. Step 4: Simplify right side
   92,131.88x = 10,873,848,670.23
5. Step 5: Solve for x
   x = 10,873,848,670.23/92,131.88
6. Step 6: Final answer
   x = 118,024.82