Finding the Fourth Proportional to 56,850.72, 78,503.52 and 35,666.40

Step by Step Solution

1. Step 1: Write the proportion equation
   56,850.72 : 78,503.52 = 35,666.40 : x
2. Step 2: Convert to fraction form
   56,850.72/78,503.52 = 35,666.40/x
3. Step 3: Cross multiply
   56,850.72x = 78,503.52 × 35,666.40
4. Step 4: Simplify right side
   56,850.72x = 2,799,937,945.73
5. Step 5: Solve for x
   x = 2,799,937,945.73/56,850.72
6. Step 6: Final answer
   x = 49,250.70