Finding the Fourth Proportional to 279,423.39, 419,130.99 and 69,061.32

Step by Step Solution

1. Step 1: Write the proportion equation
   279,423.39 : 419,130.99 = 69,061.32 : x
2. Step 2: Convert to fraction form
   279,423.39/419,130.99 = 69,061.32/x
3. Step 3: Cross multiply
   279,423.39x = 419,130.99 × 69,061.32
4. Step 4: Simplify right side
   279,423.39x = 28,945,739,422.31
5. Step 5: Solve for x
   x = 28,945,739,422.31/279,423.39
6. Step 6: Final answer
   x = 103,590.97