Finding the Fourth Proportional to 9,685,363.68, 13,364,631.72 and 5,555,180.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,685,363.68 : 13,364,631.72 = 5,555,180.88 : x
2. Step 2: Convert to fraction form
   9,685,363.68/13,364,631.72 = 5,555,180.88/x
3. Step 3: Cross multiply
   9,685,363.68x = 13,364,631.72 × 5,555,180.88
4. Step 4: Simplify right side
   9,685,363.68x = 74,242,946,599,185.52
5. Step 5: Solve for x
   x = 74,242,946,599,185.52/9,685,363.68
6. Step 6: Final answer
   x = 7,665,478.45