Finding the Fourth Proportional to 69,748.48, 96,261.76 and 39,538.72

Step by Step Solution

1. Step 1: Write the proportion equation
   69,748.48 : 96,261.76 = 39,538.72 : x
2. Step 2: Convert to fraction form
   69,748.48/96,261.76 = 39,538.72/x
3. Step 3: Cross multiply
   69,748.48x = 96,261.76 × 39,538.72
4. Step 4: Simplify right side
   69,748.48x = 3,806,066,775.35
5. Step 5: Solve for x
   x = 3,806,066,775.35/69,748.48
6. Step 6: Final answer
   x = 54,568.45