Finding the Fourth Proportional to 9,680,392.61, 13,358,434.72 and 5,328,628.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,680,392.61 : 13,358,434.72 = 5,328,628.94 : x
2. Step 2: Convert to fraction form
   9,680,392.61/13,358,434.72 = 5,328,628.94/x
3. Step 3: Cross multiply
   9,680,392.61x = 13,358,434.72 × 5,328,628.94
4. Step 4: Simplify right side
   9,680,392.61x = 71,182,141,761,979.05
5. Step 5: Solve for x
   x = 71,182,141,761,979.05/9,680,392.61
6. Step 6: Final answer
   x = 7,353,228.80