Finding the Fourth Proportional to 91,588.16, 137,440.56 and 38,997.56

Step by Step Solution

1. Step 1: Write the proportion equation
   91,588.16 : 137,440.56 = 38,997.56 : x
2. Step 2: Convert to fraction form
   91,588.16/137,440.56 = 38,997.56/x
3. Step 3: Cross multiply
   91,588.16x = 137,440.56 × 38,997.56
4. Step 4: Simplify right side
   91,588.16x = 5,359,846,485.03
5. Step 5: Solve for x
   x = 5,359,846,485.03/91,588.16
6. Step 6: Final answer
   x = 58,521.17