Finding the Fourth Proportional to 11,993,875.18, 17,990,513.88 and 5,611,268.77

Step by Step Solution

1. Step 1: Write the proportion equation
   11,993,875.18 : 17,990,513.88 = 5,611,268.77 : x
2. Step 2: Convert to fraction form
   11,993,875.18/17,990,513.88 = 5,611,268.77/x
3. Step 3: Cross multiply
   11,993,875.18x = 17,990,513.88 × 5,611,268.77
4. Step 4: Simplify right side
   11,993,875.18x = 100,949,608,691,095.52
5. Step 5: Solve for x
   x = 100,949,608,691,095.52/11,993,875.18
6. Step 6: Final answer
   x = 8,416,763.32