Finding the Fourth Proportional to 115,513, 159,408.42 and 62,521

Step by Step Solution

1. Step 1: Write the proportion equation
   115,513 : 159,408.42 = 62,521 : x
2. Step 2: Convert to fraction form
   115,513/159,408.42 = 62,521/x
3. Step 3: Cross multiply
   115,513x = 159,408.42 × 62,521
4. Step 4: Simplify right side
   115,513x = 9,966,373,826.82
5. Step 5: Solve for x
   x = 9,966,373,826.82/115,513
6. Step 6: Final answer
   x = 86,279.24