Finding the Fourth Proportional to 91,017.16, 136,587.21 and 31,853.34

Step by Step Solution

1. Step 1: Write the proportion equation
   91,017.16 : 136,587.21 = 31,853.34 : x
2. Step 2: Convert to fraction form
   91,017.16/136,587.21 = 31,853.34/x
3. Step 3: Cross multiply
   91,017.16x = 136,587.21 × 31,853.34
4. Step 4: Simplify right side
   91,017.16x = 4,350,758,839.78
5. Step 5: Solve for x
   x = 4,350,758,839.78/91,017.16
6. Step 6: Final answer
   x = 47,801.52