Finding the Fourth Proportional to 156,904.34, 216,522.69 and 89,823.38

Step by Step Solution

1. Step 1: Write the proportion equation
   156,904.34 : 216,522.69 = 89,823.38 : x
2. Step 2: Convert to fraction form
   156,904.34/216,522.69 = 89,823.38/x
3. Step 3: Cross multiply
   156,904.34x = 216,522.69 × 89,823.38
4. Step 4: Simplify right side
   156,904.34x = 19,448,799,862.49
5. Step 5: Solve for x
   x = 19,448,799,862.49/156,904.34
6. Step 6: Final answer
   x = 123,953.23