Finding the Fourth Proportional to 74,929.31, 112,297.09 and 56,061.31

Step by Step Solution

1. Step 1: Write the proportion equation
   74,929.31 : 112,297.09 = 56,061.31 : x
2. Step 2: Convert to fraction form
   74,929.31/112,297.09 = 56,061.31/x
3. Step 3: Cross multiply
   74,929.31x = 112,297.09 × 56,061.31
4. Step 4: Simplify right side
   74,929.31x = 6,295,521,834.43
5. Step 5: Solve for x
   x = 6,295,521,834.43/74,929.31
6. Step 6: Final answer
   x = 84,019.48