Finding the Fourth Proportional to 78,686.04, 118,019.34 and 31,893.96

Step by Step Solution

1. Step 1: Write the proportion equation
   78,686.04 : 118,019.34 = 31,893.96 : x
2. Step 2: Convert to fraction form
   78,686.04/118,019.34 = 31,893.96/x
3. Step 3: Cross multiply
   78,686.04x = 118,019.34 × 31,893.96
4. Step 4: Simplify right side
   78,686.04x = 3,764,104,109.19
5. Step 5: Solve for x
   x = 3,764,104,109.19/78,686.04
6. Step 6: Final answer
   x = 47,837.00