Finding the Fourth Proportional to 11,971,561.50, 16,520,756.72 and 6,539,053.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,971,561.50 : 16,520,756.72 = 6,539,053.50 : x
2. Step 2: Convert to fraction form
   11,971,561.50/16,520,756.72 = 6,539,053.50/x
3. Step 3: Cross multiply
   11,971,561.50x = 16,520,756.72 × 6,539,053.50
4. Step 4: Simplify right side
   11,971,561.50x = 108,030,112,019,869.25
5. Step 5: Solve for x
   x = 108,030,112,019,869.25/11,971,561.50
6. Step 6: Final answer
   x = 9,023,894.84