Finding the Fourth Proportional to 78,795.82, 108,700.50 and 53,311.06

Step by Step Solution

1. Step 1: Write the proportion equation
   78,795.82 : 108,700.50 = 53,311.06 : x
2. Step 2: Convert to fraction form
   78,795.82/108,700.50 = 53,311.06/x
3. Step 3: Cross multiply
   78,795.82x = 108,700.50 × 53,311.06
4. Step 4: Simplify right side
   78,795.82x = 5,794,938,877.53
5. Step 5: Solve for x
   x = 5,794,938,877.53/78,795.82
6. Step 6: Final answer
   x = 73,543.73