Finding the Fourth Proportional to 42,400,738, 63,475,553.94 and 26,174,515.60

Step by Step Solution

1. Step 1: Write the proportion equation
   42,400,738 : 63,475,553.94 = 26,174,515.60 : x
2. Step 2: Convert to fraction form
   42,400,738/63,475,553.94 = 26,174,515.60/x
3. Step 3: Cross multiply
   42,400,738x = 63,475,553.94 × 26,174,515.60
4. Step 4: Simplify right side
   42,400,738x = 1,661,441,876,821,171.50
5. Step 5: Solve for x
   x = 1,661,441,876,821,171.50/42,400,738
6. Step 6: Final answer
   x = 39,184,267.90