Finding the Fourth Proportional to 103,878.52, 143,328.56 and 65,592.05

Step by Step Solution

1. Step 1: Write the proportion equation
   103,878.52 : 143,328.56 = 65,592.05 : x
2. Step 2: Convert to fraction form
   103,878.52/143,328.56 = 65,592.05/x
3. Step 3: Cross multiply
   103,878.52x = 143,328.56 × 65,592.05
4. Step 4: Simplify right side
   103,878.52x = 9,401,213,029.34
5. Step 5: Solve for x
   x = 9,401,213,029.34/103,878.52
6. Step 6: Final answer
   x = 90,501.99