Finding the Fourth Proportional to 12,948,808.30, 17,869,352.76 and 7,147,588.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,948,808.30 : 17,869,352.76 = 7,147,588.50 : x
2. Step 2: Convert to fraction form
   12,948,808.30/17,869,352.76 = 7,147,588.50/x
3. Step 3: Cross multiply
   12,948,808.30x = 17,869,352.76 × 7,147,588.50
4. Step 4: Simplify right side
   12,948,808.30x = 127,722,780,289,819.27
5. Step 5: Solve for x
   x = 127,722,780,289,819.27/12,948,808.30
6. Step 6: Final answer
   x = 9,863,670.64