Finding the Fourth Proportional to 78,884.37, 118,373.38 and 31,521.83

Step by Step Solution

1. Step 1: Write the proportion equation
   78,884.37 : 118,373.38 = 31,521.83 : x
2. Step 2: Convert to fraction form
   78,884.37/118,373.38 = 31,521.83/x
3. Step 3: Cross multiply
   78,884.37x = 118,373.38 × 31,521.83
4. Step 4: Simplify right side
   78,884.37x = 3,731,344,890.21
5. Step 5: Solve for x
   x = 3,731,344,890.21/78,884.37
6. Step 6: Final answer
   x = 47,301.45