Finding the Fourth Proportional to 10,128,659.56, 13,977,548.45 and 5,482,443.67

Step by Step Solution

1. Step 1: Write the proportion equation
   10,128,659.56 : 13,977,548.45 = 5,482,443.67 : x
2. Step 2: Convert to fraction form
   10,128,659.56/13,977,548.45 = 5,482,443.67/x
3. Step 3: Cross multiply
   10,128,659.56x = 13,977,548.45 × 5,482,443.67
4. Step 4: Simplify right side
   10,128,659.56x = 76,631,122,021,820.81
5. Step 5: Solve for x
   x = 76,631,122,021,820.81/10,128,659.56
6. Step 6: Final answer
   x = 7,565,771.32