Finding the Fourth Proportional to 12,490,328.18, 17,231,374.82 and 8,361,689.33

Step by Step Solution

1. Step 1: Write the proportion equation
   12,490,328.18 : 17,231,374.82 = 8,361,689.33 : x
2. Step 2: Convert to fraction form
   12,490,328.18/17,231,374.82 = 8,361,689.33/x
3. Step 3: Cross multiply
   12,490,328.18x = 17,231,374.82 × 8,361,689.33
4. Step 4: Simplify right side
   12,490,328.18x = 144,083,402,845,659.38
5. Step 5: Solve for x
   x = 144,083,402,845,659.38/12,490,328.18
6. Step 6: Final answer
   x = 11,535,597.85