Finding the Fourth Proportional to 12,890,158.56, 17,788,063.73 and 7,088,939.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,890,158.56 : 17,788,063.73 = 7,088,939.69 : x
2. Step 2: Convert to fraction form
   12,890,158.56/17,788,063.73 = 7,088,939.69/x
3. Step 3: Cross multiply
   12,890,158.56x = 17,788,063.73 × 7,088,939.69
4. Step 4: Simplify right side
   12,890,158.56x = 126,098,510,859,461.44
5. Step 5: Solve for x
   x = 126,098,510,859,461.44/12,890,158.56
6. Step 6: Final answer
   x = 9,782,541.48