Finding the Fourth Proportional to 23,179.60, 34,748.61 and 8,385.04

Step by Step Solution

1. Step 1: Write the proportion equation
   23,179.60 : 34,748.61 = 8,385.04 : x
2. Step 2: Convert to fraction form
   23,179.60/34,748.61 = 8,385.04/x
3. Step 3: Cross multiply
   23,179.60x = 34,748.61 × 8,385.04
4. Step 4: Simplify right side
   23,179.60x = 291,368,484.79
5. Step 5: Solve for x
   x = 291,368,484.79/23,179.60
6. Step 6: Final answer
   x = 12,570.04