Finding the Fourth Proportional to 112,725.52, 155,526 and 64,972.38

Step by Step Solution

1. Step 1: Write the proportion equation
   112,725.52 : 155,526 = 64,972.38 : x
2. Step 2: Convert to fraction form
   112,725.52/155,526 = 64,972.38/x
3. Step 3: Cross multiply
   112,725.52x = 155,526 × 64,972.38
4. Step 4: Simplify right side
   112,725.52x = 10,104,894,371.88
5. Step 5: Solve for x
   x = 10,104,894,371.88/112,725.52
6. Step 6: Final answer
   x = 89,641.59