Finding the Fourth Proportional to 9,630,979.65, 13,290,748.71 and 5,279,972.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,630,979.65 : 13,290,748.71 = 5,279,972.54 : x
2. Step 2: Convert to fraction form
   9,630,979.65/13,290,748.71 = 5,279,972.54/x
3. Step 3: Cross multiply
   9,630,979.65x = 13,290,748.71 × 5,279,972.54
4. Step 4: Simplify right side
   9,630,979.65x = 70,174,788,158,386.69
5. Step 5: Solve for x
   x = 70,174,788,158,386.69/9,630,979.65
6. Step 6: Final answer
   x = 7,286,360.34