Finding the Fourth Proportional to 91,003.85, 136,567.32 and 31,840.04

Step by Step Solution

1. Step 1: Write the proportion equation
   91,003.85 : 136,567.32 = 31,840.04 : x
2. Step 2: Convert to fraction form
   91,003.85/136,567.32 = 31,840.04/x
3. Step 3: Cross multiply
   91,003.85x = 136,567.32 × 31,840.04
4. Step 4: Simplify right side
   91,003.85x = 4,348,308,385.32
5. Step 5: Solve for x
   x = 4,348,308,385.32/91,003.85
6. Step 6: Final answer
   x = 47,781.58