Finding the Fourth Proportional to 14,100.64, 19,458.48 and 7,812.88

Step by Step Solution

1. Step 1: Write the proportion equation
   14,100.64 : 19,458.48 = 7,812.88 : x
2. Step 2: Convert to fraction form
   14,100.64/19,458.48 = 7,812.88/x
3. Step 3: Cross multiply
   14,100.64x = 19,458.48 × 7,812.88
4. Step 4: Simplify right side
   14,100.64x = 152,026,769.22
5. Step 5: Solve for x
   x = 152,026,769.22/14,100.64
6. Step 6: Final answer
   x = 10,781.55