Finding the Fourth Proportional to 231,003, 346,642.74 and 99,675

Step by Step Solution

1. Step 1: Write the proportion equation
   231,003 : 346,642.74 = 99,675 : x
2. Step 2: Convert to fraction form
   231,003/346,642.74 = 99,675/x
3. Step 3: Cross multiply
   231,003x = 346,642.74 × 99,675
4. Step 4: Simplify right side
   231,003x = 34,551,615,109.50
5. Step 5: Solve for x
   x = 34,551,615,109.50/231,003
6. Step 6: Final answer
   x = 149,572.15