Finding the Fourth Proportional to 72,938.64, 108,640.89 and 69,525.84

Step by Step Solution

1. Step 1: Write the proportion equation
   72,938.64 : 108,640.89 = 69,525.84 : x
2. Step 2: Convert to fraction form
   72,938.64/108,640.89 = 69,525.84/x
3. Step 3: Cross multiply
   72,938.64x = 108,640.89 × 69,525.84
4. Step 4: Simplify right side
   72,938.64x = 7,553,349,347.46
5. Step 5: Solve for x
   x = 7,553,349,347.46/72,938.64
6. Step 6: Final answer
   x = 103,557.58