Finding the Fourth Proportional to 147,030.32, 202,870.49 and 86,578.89

Step by Step Solution

1. Step 1: Write the proportion equation
   147,030.32 : 202,870.49 = 86,578.89 : x
2. Step 2: Convert to fraction form
   147,030.32/202,870.49 = 86,578.89/x
3. Step 3: Cross multiply
   147,030.32x = 202,870.49 × 86,578.89
4. Step 4: Simplify right side
   147,030.32x = 17,564,301,405.06
5. Step 5: Solve for x
   x = 17,564,301,405.06/147,030.32
6. Step 6: Final answer
   x = 119,460.41