Finding the Fourth Proportional to 69,130.72, 103,678.80 and 19,882.72

Step by Step Solution

1. Step 1: Write the proportion equation
   69,130.72 : 103,678.80 = 19,882.72 : x
2. Step 2: Convert to fraction form
   69,130.72/103,678.80 = 19,882.72/x
3. Step 3: Cross multiply
   69,130.72x = 103,678.80 × 19,882.72
4. Step 4: Simplify right side
   69,130.72x = 2,061,416,550.34
5. Step 5: Solve for x
   x = 2,061,416,550.34/69,130.72
6. Step 6: Final answer
   x = 29,819.11