Finding the Fourth Proportional to 13,816.56, 19,066.32 and 7,528.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,816.56 : 19,066.32 = 7,528.98 : x
2. Step 2: Convert to fraction form
   13,816.56/19,066.32 = 7,528.98/x
3. Step 3: Cross multiply
   13,816.56x = 19,066.32 × 7,528.98
4. Step 4: Simplify right side
   13,816.56x = 143,549,941.95
5. Step 5: Solve for x
   x = 143,549,941.95/13,816.56
6. Step 6: Final answer
   x = 10,389.70