Finding the Fourth Proportional to 56,865.22, 78,448.63 and 32,978.06

Step by Step Solution

1. Step 1: Write the proportion equation
   56,865.22 : 78,448.63 = 32,978.06 : x
2. Step 2: Convert to fraction form
   56,865.22/78,448.63 = 32,978.06/x
3. Step 3: Cross multiply
   56,865.22x = 78,448.63 × 32,978.06
4. Step 4: Simplify right side
   56,865.22x = 2,587,083,627.06
5. Step 5: Solve for x
   x = 2,587,083,627.06/56,865.22
6. Step 6: Final answer
   x = 45,495.01