Finding the Fourth Proportional to 42,837,689.43, 59,164,684.38 and 28,874,962.89

Step by Step Solution

1. Step 1: Write the proportion equation
   42,837,689.43 : 59,164,684.38 = 28,874,962.89 : x
2. Step 2: Convert to fraction form
   42,837,689.43/59,164,684.38 = 28,874,962.89/x
3. Step 3: Cross multiply
   42,837,689.43x = 59,164,684.38 × 28,874,962.89
4. Step 4: Simplify right side
   42,837,689.43x = 1,708,378,065,871,062.75
5. Step 5: Solve for x
   x = 1,708,378,065,871,062.75/42,837,689.43
6. Step 6: Final answer
   x = 39,880,257.05