Finding the Fourth Proportional to 99,007.43, 148,508.69 and 28,887.35

Step by Step Solution

1. Step 1: Write the proportion equation
   99,007.43 : 148,508.69 = 28,887.35 : x
2. Step 2: Convert to fraction form
   99,007.43/148,508.69 = 28,887.35/x
3. Step 3: Cross multiply
   99,007.43x = 148,508.69 × 28,887.35
4. Step 4: Simplify right side
   99,007.43x = 4,290,022,578.29
5. Step 5: Solve for x
   x = 4,290,022,578.29/99,007.43
6. Step 6: Final answer
   x = 43,330.31