Finding the Fourth Proportional to 13,900.50, 19,182.75 and 7,612.98

Step by Step Solution

1. Step 1: Write the proportion equation
   13,900.50 : 19,182.75 = 7,612.98 : x
2. Step 2: Convert to fraction form
   13,900.50/19,182.75 = 7,612.98/x
3. Step 3: Cross multiply
   13,900.50x = 19,182.75 × 7,612.98
4. Step 4: Simplify right side
   13,900.50x = 146,037,892.10
5. Step 5: Solve for x
   x = 146,037,892.10/13,900.50
6. Step 6: Final answer
   x = 10,505.95