Finding the Fourth Proportional to 12,020,870.88, 16,586,357.04 and 7,123,938.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,020,870.88 : 16,586,357.04 = 7,123,938.12 : x
2. Step 2: Convert to fraction form
   12,020,870.88/16,586,357.04 = 7,123,938.12/x
3. Step 3: Cross multiply
   12,020,870.88x = 16,586,357.04 × 7,123,938.12
4. Step 4: Simplify right side
   12,020,870.88x = 118,160,181,189,186.36
5. Step 5: Solve for x
   x = 118,160,181,189,186.36/12,020,870.88
6. Step 6: Final answer
   x = 9,829,585.76