Finding the Fourth Proportional to 56,978.29, 78,640.92 and 37,563.13

Step by Step Solution

1. Step 1: Write the proportion equation
   56,978.29 : 78,640.92 = 37,563.13 : x
2. Step 2: Convert to fraction form
   56,978.29/78,640.92 = 37,563.13/x
3. Step 3: Cross multiply
   56,978.29x = 78,640.92 × 37,563.13
4. Step 4: Simplify right side
   56,978.29x = 2,953,999,199.58
5. Step 5: Solve for x
   x = 2,953,999,199.58/56,978.29
6. Step 6: Final answer
   x = 51,844.29