Finding the Fourth Proportional to 10,381,528.82, 14,222,456.51 and 9,993,390.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,381,528.82 : 14,222,456.51 = 9,993,390.50 : x
2. Step 2: Convert to fraction form
   10,381,528.82/14,222,456.51 = 9,993,390.50/x
3. Step 3: Cross multiply
   10,381,528.82x = 14,222,456.51 × 9,993,390.50
4. Step 4: Simplify right side
   10,381,528.82x = 142,130,561,773,697.16
5. Step 5: Solve for x
   x = 142,130,561,773,697.16/10,381,528.82
6. Step 6: Final answer
   x = 13,690,715.91