Finding the Fourth Proportional to 13,902.35, 19,185.29 and 7,528.94

Step by Step Solution

1. Step 1: Write the proportion equation
   13,902.35 : 19,185.29 = 7,528.94 : x
2. Step 2: Convert to fraction form
   13,902.35/19,185.29 = 7,528.94/x
3. Step 3: Cross multiply
   13,902.35x = 19,185.29 × 7,528.94
4. Step 4: Simplify right side
   13,902.35x = 144,444,897.29
5. Step 5: Solve for x
   x = 144,444,897.29/13,902.35
6. Step 6: Final answer
   x = 10,389.96