Finding the Fourth Proportional to 56,859.85, 78,498.72 and 37,772.35

Step by Step Solution

1. Step 1: Write the proportion equation
   56,859.85 : 78,498.72 = 37,772.35 : x
2. Step 2: Convert to fraction form
   56,859.85/78,498.72 = 37,772.35/x
3. Step 3: Cross multiply
   56,859.85x = 78,498.72 × 37,772.35
4. Step 4: Simplify right side
   56,859.85x = 2,965,081,126.39
5. Step 5: Solve for x
   x = 2,965,081,126.39/56,859.85
6. Step 6: Final answer
   x = 52,147.19