Finding the Fourth Proportional to 12,909.71, 19,365.72 and 5,012.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,909.71 : 19,365.72 = 5,012.04 : x
2. Step 2: Convert to fraction form
   12,909.71/19,365.72 = 5,012.04/x
3. Step 3: Cross multiply
   12,909.71x = 19,365.72 × 5,012.04
4. Step 4: Simplify right side
   12,909.71x = 97,061,763.27
5. Step 5: Solve for x
   x = 97,061,763.27/12,909.71
6. Step 6: Final answer
   x = 7,518.51