Finding the Fourth Proportional to 77,542.09, 107,048.72 and 52,181.80

Step by Step Solution

1. Step 1: Write the proportion equation
   77,542.09 : 107,048.72 = 52,181.80 : x
2. Step 2: Convert to fraction form
   77,542.09/107,048.72 = 52,181.80/x
3. Step 3: Cross multiply
   77,542.09x = 107,048.72 × 52,181.80
4. Step 4: Simplify right side
   77,542.09x = 5,585,994,897.30
5. Step 5: Solve for x
   x = 5,585,994,897.30/77,542.09
6. Step 6: Final answer
   x = 72,038.23