Finding the Fourth Proportional to 42,837,705.93, 59,164,707.15 and 28,874,979.39

Step by Step Solution

1. Step 1: Write the proportion equation
   42,837,705.93 : 59,164,707.15 = 28,874,979.39 : x
2. Step 2: Convert to fraction form
   42,837,705.93/59,164,707.15 = 28,874,979.39/x
3. Step 3: Cross multiply
   42,837,705.93x = 59,164,707.15 × 28,874,979.39
4. Step 4: Simplify right side
   42,837,705.93x = 1,708,379,699,571,635.75
5. Step 5: Solve for x
   x = 1,708,379,699,571,635.75/42,837,705.93
6. Step 6: Final answer
   x = 39,880,279.83