Finding the Fourth Proportional to 72,773.78, 100,412.62 and 42,553.24

Step by Step Solution

1. Step 1: Write the proportion equation
   72,773.78 : 100,412.62 = 42,553.24 : x
2. Step 2: Convert to fraction form
   72,773.78/100,412.62 = 42,553.24/x
3. Step 3: Cross multiply
   72,773.78x = 100,412.62 × 42,553.24
4. Step 4: Simplify right side
   72,773.78x = 4,272,882,317.89
5. Step 5: Solve for x
   x = 4,272,882,317.89/72,773.78
6. Step 6: Final answer
   x = 58,714.59