Finding the Fourth Proportional to 13,858.46, 19,123.79 and 7,570.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,858.46 : 19,123.79 = 7,570.83 : x
2. Step 2: Convert to fraction form
   13,858.46/19,123.79 = 7,570.83/x
3. Step 3: Cross multiply
   13,858.46x = 19,123.79 × 7,570.83
4. Step 4: Simplify right side
   13,858.46x = 144,782,925.19
5. Step 5: Solve for x
   x = 144,782,925.19/13,858.46
6. Step 6: Final answer
   x = 10,447.26