Finding the Fourth Proportional to 56,767.90, 78,337.59 and 31,616.86

Step by Step Solution

1. Step 1: Write the proportion equation
   56,767.90 : 78,337.59 = 31,616.86 : x
2. Step 2: Convert to fraction form
   56,767.90/78,337.59 = 31,616.86/x
3. Step 3: Cross multiply
   56,767.90x = 78,337.59 × 31,616.86
4. Step 4: Simplify right side
   56,767.90x = 2,476,788,615.77
5. Step 5: Solve for x
   x = 2,476,788,615.77/56,767.90
6. Step 6: Final answer
   x = 43,630.09