Finding the Fourth Proportional to 13,985.55, 19,300.41 and 7,612.49

Step by Step Solution

1. Step 1: Write the proportion equation
   13,985.55 : 19,300.41 = 7,612.49 : x
2. Step 2: Convert to fraction form
   13,985.55/19,300.41 = 7,612.49/x
3. Step 3: Cross multiply
   13,985.55x = 19,300.41 × 7,612.49
4. Step 4: Simplify right side
   13,985.55x = 146,924,081.62
5. Step 5: Solve for x
   x = 146,924,081.62/13,985.55
6. Step 6: Final answer
   x = 10,505.42