Finding the Fourth Proportional to 13,123.60, 19,546.20 and 13,060.04

Step by Step Solution

1. Step 1: Write the proportion equation
   13,123.60 : 19,546.20 = 13,060.04 : x
2. Step 2: Convert to fraction form
   13,123.60/19,546.20 = 13,060.04/x
3. Step 3: Cross multiply
   13,123.60x = 19,546.20 × 13,060.04
4. Step 4: Simplify right side
   13,123.60x = 255,274,056.12
5. Step 5: Solve for x
   x = 255,274,056.12/13,123.60
6. Step 6: Final answer
   x = 19,451.53