Finding the Fourth Proportional to 97,156.40, 134,687.27 and 91,834.72

Step by Step Solution

1. Step 1: Write the proportion equation
   97,156.40 : 134,687.27 = 91,834.72 : x
2. Step 2: Convert to fraction form
   97,156.40/134,687.27 = 91,834.72/x
3. Step 3: Cross multiply
   97,156.40x = 134,687.27 × 91,834.72
4. Step 4: Simplify right side
   97,156.40x = 12,368,967,728.01
5. Step 5: Solve for x
   x = 12,368,967,728.01/97,156.40
6. Step 6: Final answer
   x = 127,309.86