Finding the Fourth Proportional to 62,890.51, 86,789.15 and 34,210.17

Step by Step Solution

1. Step 1: Write the proportion equation
   62,890.51 : 86,789.15 = 34,210.17 : x
2. Step 2: Convert to fraction form
   62,890.51/86,789.15 = 34,210.17/x
3. Step 3: Cross multiply
   62,890.51x = 86,789.15 × 34,210.17
4. Step 4: Simplify right side
   62,890.51x = 2,969,071,404.60
5. Step 5: Solve for x
   x = 2,969,071,404.60/62,890.51
6. Step 6: Final answer
   x = 47,210.17