Finding the Fourth Proportional to 10,788,128.67, 14,891,165.46 and 8,587,029

Step by Step Solution

1. Step 1: Write the proportion equation
   10,788,128.67 : 14,891,165.46 = 8,587,029 : x
2. Step 2: Convert to fraction form
   10,788,128.67/14,891,165.46 = 8,587,029/x
3. Step 3: Cross multiply
   10,788,128.67x = 14,891,165.46 × 8,587,029
4. Step 4: Simplify right side
   10,788,128.67x = 127,870,869,648,818.34
5. Step 5: Solve for x
   x = 127,870,869,648,818.34/10,788,128.67
6. Step 6: Final answer
   x = 11,852,924.04