Finding the Fourth Proportional to 13,391,724.17, 18,482,288.82 and 7,885,611.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,391,724.17 : 18,482,288.82 = 7,885,611.31 : x
2. Step 2: Convert to fraction form
   13,391,724.17/18,482,288.82 = 7,885,611.31/x
3. Step 3: Cross multiply
   13,391,724.17x = 18,482,288.82 × 7,885,611.31
4. Step 4: Simplify right side
   13,391,724.17x = 145,744,145,753,678.56
5. Step 5: Solve for x
   x = 145,744,145,753,678.56/13,391,724.17
6. Step 6: Final answer
   x = 10,883,150.21