Finding the Fourth Proportional to 31,068.56, 46,599.60 and 8,880.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,068.56 : 46,599.60 = 8,880.50 : x
2. Step 2: Convert to fraction form
   31,068.56/46,599.60 = 8,880.50/x
3. Step 3: Cross multiply
   31,068.56x = 46,599.60 × 8,880.50
4. Step 4: Simplify right side
   31,068.56x = 413,827,747.80
5. Step 5: Solve for x
   x = 413,827,747.80/31,068.56
6. Step 6: Final answer
   x = 13,319.82