Finding the Fourth Proportional to 89,199.45, 123,100.94 and 58,931.69

Step by Step Solution

1. Step 1: Write the proportion equation
   89,199.45 : 123,100.94 = 58,931.69 : x
2. Step 2: Convert to fraction form
   89,199.45/123,100.94 = 58,931.69/x
3. Step 3: Cross multiply
   89,199.45x = 123,100.94 × 58,931.69
4. Step 4: Simplify right side
   89,199.45x = 7,254,545,966.61
5. Step 5: Solve for x
   x = 7,254,545,966.61/89,199.45
6. Step 6: Final answer
   x = 81,329.49