Finding the Fourth Proportional to 99,443.12, 149,129.16 and 32,870.96

Step by Step Solution

1. Step 1: Write the proportion equation
   99,443.12 : 149,129.16 = 32,870.96 : x
2. Step 2: Convert to fraction form
   99,443.12/149,129.16 = 32,870.96/x
3. Step 3: Cross multiply
   99,443.12x = 149,129.16 × 32,870.96
4. Step 4: Simplify right side
   99,443.12x = 4,902,018,653.19
5. Step 5: Solve for x
   x = 4,902,018,653.19/99,443.12
6. Step 6: Final answer
   x = 49,294.70