Finding the Fourth Proportional to 97,091.98, 133,954.89 and 79,156.15

Step by Step Solution

1. Step 1: Write the proportion equation
   97,091.98 : 133,954.89 = 79,156.15 : x
2. Step 2: Convert to fraction form
   97,091.98/133,954.89 = 79,156.15/x
3. Step 3: Cross multiply
   97,091.98x = 133,954.89 × 79,156.15
4. Step 4: Simplify right side
   97,091.98x = 10,603,353,366.07
5. Step 5: Solve for x
   x = 10,603,353,366.07/97,091.98
6. Step 6: Final answer
   x = 109,209.36