Finding the Fourth Proportional to 78,601.60, 117,951 and 31,854.88

Step by Step Solution

1. Step 1: Write the proportion equation
   78,601.60 : 117,951 = 31,854.88 : x
2. Step 2: Convert to fraction form
   78,601.60/117,951 = 31,854.88/x
3. Step 3: Cross multiply
   78,601.60x = 117,951 × 31,854.88
4. Step 4: Simplify right side
   78,601.60x = 3,757,314,950.88
5. Step 5: Solve for x
   x = 3,757,314,950.88/78,601.60
6. Step 6: Final answer
   x = 47,802.02