Finding the Fourth Proportional to 147,045.72, 202,887.72 and 86,611.62

Step by Step Solution

1. Step 1: Write the proportion equation
   147,045.72 : 202,887.72 = 86,611.62 : x
2. Step 2: Convert to fraction form
   147,045.72/202,887.72 = 86,611.62/x
3. Step 3: Cross multiply
   147,045.72x = 202,887.72 × 86,611.62
4. Step 4: Simplify right side
   147,045.72x = 17,572,434,107.31
5. Step 5: Solve for x
   x = 17,572,434,107.31/147,045.72
6. Step 6: Final answer
   x = 119,503.20