Finding the Fourth Proportional to 12,083,642.88, 18,128,127.60 and 5,261,310.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,083,642.88 : 18,128,127.60 = 5,261,310.96 : x
2. Step 2: Convert to fraction form
   12,083,642.88/18,128,127.60 = 5,261,310.96/x
3. Step 3: Cross multiply
   12,083,642.88x = 18,128,127.60 × 5,261,310.96
4. Step 4: Simplify right side
   12,083,642.88x = 95,377,716,426,158.50
5. Step 5: Solve for x
   x = 95,377,716,426,158.50/12,083,642.88
6. Step 6: Final answer
   x = 7,893,126.05