Finding the Fourth Proportional to 13,111.17, 19,654.94 and 4,785.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,111.17 : 19,654.94 = 4,785.34 : x
2. Step 2: Convert to fraction form
   13,111.17/19,654.94 = 4,785.34/x
3. Step 3: Cross multiply
   13,111.17x = 19,654.94 × 4,785.34
4. Step 4: Simplify right side
   13,111.17x = 94,055,570.58
5. Step 5: Solve for x
   x = 94,055,570.58/13,111.17
6. Step 6: Final answer
   x = 7,173.70