Finding the Fourth Proportional to 115,849.88, 159,887.76 and 64,881.98

Step by Step Solution

1. Step 1: Write the proportion equation
   115,849.88 : 159,887.76 = 64,881.98 : x
2. Step 2: Convert to fraction form
   115,849.88/159,887.76 = 64,881.98/x
3. Step 3: Cross multiply
   115,849.88x = 159,887.76 × 64,881.98
4. Step 4: Simplify right side
   115,849.88x = 10,373,834,446.56
5. Step 5: Solve for x
   x = 10,373,834,446.56/115,849.88
6. Step 6: Final answer
   x = 89,545.49