Finding the Fourth Proportional to 83,385.30, 124,967.37 and 43,970.31

Step by Step Solution

1. Step 1: Write the proportion equation
   83,385.30 : 124,967.37 = 43,970.31 : x
2. Step 2: Convert to fraction form
   83,385.30/124,967.37 = 43,970.31/x
3. Step 3: Cross multiply
   83,385.30x = 124,967.37 × 43,970.31
4. Step 4: Simplify right side
   83,385.30x = 5,494,853,998.78
5. Step 5: Solve for x
   x = 5,494,853,998.78/83,385.30
6. Step 6: Final answer
   x = 65,897.15