Finding the Fourth Proportional to 78,345,142.50, 108,002,348.79 and 54,750,424.26

Step by Step Solution

1. Step 1: Write the proportion equation
   78,345,142.50 : 108,002,348.79 = 54,750,424.26 : x
2. Step 2: Convert to fraction form
   78,345,142.50/108,002,348.79 = 54,750,424.26/x
3. Step 3: Cross multiply
   78,345,142.50x = 108,002,348.79 × 54,750,424.26
4. Step 4: Simplify right side
   78,345,142.50x = 5,913,174,417,328,998
5. Step 5: Solve for x
   x = 5,913,174,417,328,998/78,345,142.50
6. Step 6: Final answer
   x = 75,475,954.59