Finding the Fourth Proportional to 56,212.62, 77,570.37 and 31,060.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,212.62 : 77,570.37 = 31,060.50 : x
2. Step 2: Convert to fraction form
   56,212.62/77,570.37 = 31,060.50/x
3. Step 3: Cross multiply
   56,212.62x = 77,570.37 × 31,060.50
4. Step 4: Simplify right side
   56,212.62x = 2,409,374,477.39
5. Step 5: Solve for x
   x = 2,409,374,477.39/56,212.62
6. Step 6: Final answer
   x = 42,861.81