Finding the Fourth Proportional to 5,515,128.76, 7,611,337.34 and 3,068,200.76

Step by Step Solution

1. Step 1: Write the proportion equation
   5,515,128.76 : 7,611,337.34 = 3,068,200.76 : x
2. Step 2: Convert to fraction form
   5,515,128.76/7,611,337.34 = 3,068,200.76/x
3. Step 3: Cross multiply
   5,515,128.76x = 7,611,337.34 × 3,068,200.76
4. Step 4: Simplify right side
   5,515,128.76x = 23,353,111,011,204.38
5. Step 5: Solve for x
   x = 23,353,111,011,204.38/5,515,128.76
6. Step 6: Final answer
   x = 4,234,372.76