Finding the Fourth Proportional to 72,772.78, 109,523.70 and 65,526.52

Step by Step Solution

1. Step 1: Write the proportion equation
   72,772.78 : 109,523.70 = 65,526.52 : x
2. Step 2: Convert to fraction form
   72,772.78/109,523.70 = 65,526.52/x
3. Step 3: Cross multiply
   72,772.78x = 109,523.70 × 65,526.52
4. Step 4: Simplify right side
   72,772.78x = 7,176,706,918.52
5. Step 5: Solve for x
   x = 7,176,706,918.52/72,772.78
6. Step 6: Final answer
   x = 98,618.01