Finding the Fourth Proportional to 18,890,925.39, 28,338,411.06 and 5,244,128.82

Step by Step Solution

1. Step 1: Write the proportion equation
   18,890,925.39 : 28,338,411.06 = 5,244,128.82 : x
2. Step 2: Convert to fraction form
   18,890,925.39/28,338,411.06 = 5,244,128.82/x
3. Step 3: Cross multiply
   18,890,925.39x = 28,338,411.06 × 5,244,128.82
4. Step 4: Simplify right side
   18,890,925.39x = 148,610,278,152,752.75
5. Step 5: Solve for x
   x = 148,610,278,152,752.75/18,890,925.39
6. Step 6: Final answer
   x = 7,866,754.81