Finding the Fourth Proportional to 70,861.89, 97,779.24 and 40,648.49

Step by Step Solution

1. Step 1: Write the proportion equation
   70,861.89 : 97,779.24 = 40,648.49 : x
2. Step 2: Convert to fraction form
   70,861.89/97,779.24 = 40,648.49/x
3. Step 3: Cross multiply
   70,861.89x = 97,779.24 × 40,648.49
4. Step 4: Simplify right side
   70,861.89x = 3,974,577,970.45
5. Step 5: Solve for x
   x = 3,974,577,970.45/70,861.89
6. Step 6: Final answer
   x = 56,089.08