Finding the Fourth Proportional to 13,878.64, 19,152.67 and 7,590.88

Step by Step Solution

1. Step 1: Write the proportion equation
   13,878.64 : 19,152.67 = 7,590.88 : x
2. Step 2: Convert to fraction form
   13,878.64/19,152.67 = 7,590.88/x
3. Step 3: Cross multiply
   13,878.64x = 19,152.67 × 7,590.88
4. Step 4: Simplify right side
   13,878.64x = 145,385,523.89
5. Step 5: Solve for x
   x = 145,385,523.89/13,878.64
6. Step 6: Final answer
   x = 10,475.49