Finding the Fourth Proportional to 106,693.55, 160,038.50 and 31,813.91

Step by Step Solution

1. Step 1: Write the proportion equation
   106,693.55 : 160,038.50 = 31,813.91 : x
2. Step 2: Convert to fraction form
   106,693.55/160,038.50 = 31,813.91/x
3. Step 3: Cross multiply
   106,693.55x = 160,038.50 × 31,813.91
4. Step 4: Simplify right side
   106,693.55x = 5,091,449,476.27
5. Step 5: Solve for x
   x = 5,091,449,476.27/106,693.55
6. Step 6: Final answer
   x = 47,720.31