Finding the Fourth Proportional to 231,121, 346,670.16 and 89,034.04

Step by Step Solution

1. Step 1: Write the proportion equation
   231,121 : 346,670.16 = 89,034.04 : x
2. Step 2: Convert to fraction form
   231,121/346,670.16 = 89,034.04/x
3. Step 3: Cross multiply
   231,121x = 346,670.16 × 89,034.04
4. Step 4: Simplify right side
   231,121x = 30,865,444,892.25
5. Step 5: Solve for x
   x = 30,865,444,892.25/231,121
6. Step 6: Final answer
   x = 133,546.69