Finding the Fourth Proportional to 28,061.34, 42,093.84 and 10,531.62

Step by Step Solution

1. Step 1: Write the proportion equation
   28,061.34 : 42,093.84 = 10,531.62 : x
2. Step 2: Convert to fraction form
   28,061.34/42,093.84 = 10,531.62/x
3. Step 3: Cross multiply
   28,061.34x = 42,093.84 × 10,531.62
4. Step 4: Simplify right side
   28,061.34x = 443,316,327.22
5. Step 5: Solve for x
   x = 443,316,327.22/28,061.34
6. Step 6: Final answer
   x = 15,798.12