Finding the Fourth Proportional to 279,423.42, 419,130.99 and 69,061.29

Step by Step Solution

1. Step 1: Write the proportion equation
   279,423.42 : 419,130.99 = 69,061.29 : x
2. Step 2: Convert to fraction form
   279,423.42/419,130.99 = 69,061.29/x
3. Step 3: Cross multiply
   279,423.42x = 419,130.99 × 69,061.29
4. Step 4: Simplify right side
   279,423.42x = 28,945,726,848.38
5. Step 5: Solve for x
   x = 28,945,726,848.38/279,423.42
6. Step 6: Final answer
   x = 103,590.91