Finding the Fourth Proportional to 12,826,776.32, 17,696,026.52 and 7,320,457.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,826,776.32 : 17,696,026.52 = 7,320,457.12 : x
2. Step 2: Convert to fraction form
   12,826,776.32/17,696,026.52 = 7,320,457.12/x
3. Step 3: Cross multiply
   12,826,776.32x = 17,696,026.52 × 7,320,457.12
4. Step 4: Simplify right side
   12,826,776.32x = 129,543,003,334,042.83
5. Step 5: Solve for x
   x = 129,543,003,334,042.83/12,826,776.32
6. Step 6: Final answer
   x = 10,099,420.16