Finding the Fourth Proportional to 8,703,899.31, 12,006,378.37 and 5,435,039.55

Step by Step Solution

1. Step 1: Write the proportion equation
   8,703,899.31 : 12,006,378.37 = 5,435,039.55 : x
2. Step 2: Convert to fraction form
   8,703,899.31/12,006,378.37 = 5,435,039.55/x
3. Step 3: Cross multiply
   8,703,899.31x = 12,006,378.37 × 5,435,039.55
4. Step 4: Simplify right side
   8,703,899.31x = 65,255,141,300,718.52
5. Step 5: Solve for x
   x = 65,255,141,300,718.52/8,703,899.31
6. Step 6: Final answer
   x = 7,497,230.72