Finding the Fourth Proportional to 69,156.88, 103,638.12 and 39,530.32

Step by Step Solution

1. Step 1: Write the proportion equation
   69,156.88 : 103,638.12 = 39,530.32 : x
2. Step 2: Convert to fraction form
   69,156.88/103,638.12 = 39,530.32/x
3. Step 3: Cross multiply
   69,156.88x = 103,638.12 × 39,530.32
4. Step 4: Simplify right side
   69,156.88x = 4,096,848,047.80
5. Step 5: Solve for x
   x = 4,096,848,047.80/69,156.88
6. Step 6: Final answer
   x = 59,239.92