Finding the Fourth Proportional to 99,003.53, 148,527.17 and 28,888.31

Step by Step Solution

1. Step 1: Write the proportion equation
   99,003.53 : 148,527.17 = 28,888.31 : x
2. Step 2: Convert to fraction form
   99,003.53/148,527.17 = 28,888.31/x
3. Step 3: Cross multiply
   99,003.53x = 148,527.17 × 28,888.31
4. Step 4: Simplify right side
   99,003.53x = 4,290,699,265.59
5. Step 5: Solve for x
   x = 4,290,699,265.59/99,003.53
6. Step 6: Final answer
   x = 43,338.85