Finding the Fourth Proportional to 56,565, 78,061.32 and 31,416.12

Step by Step Solution

1. Step 1: Write the proportion equation
   56,565 : 78,061.32 = 31,416.12 : x
2. Step 2: Convert to fraction form
   56,565/78,061.32 = 31,416.12/x
3. Step 3: Cross multiply
   56,565x = 78,061.32 × 31,416.12
4. Step 4: Simplify right side
   56,565x = 2,452,383,796.48
5. Step 5: Solve for x
   x = 2,452,383,796.48/56,565
6. Step 6: Final answer
   x = 43,355.15