Finding the Fourth Proportional to 139,875.94, 209,996.82 and 83,053.60

Step by Step Solution

1. Step 1: Write the proportion equation
   139,875.94 : 209,996.82 = 83,053.60 : x
2. Step 2: Convert to fraction form
   139,875.94/209,996.82 = 83,053.60/x
3. Step 3: Cross multiply
   139,875.94x = 209,996.82 × 83,053.60
4. Step 4: Simplify right side
   139,875.94x = 17,440,991,889.55
5. Step 5: Solve for x
   x = 17,440,991,889.55/139,875.94
6. Step 6: Final answer
   x = 124,689.01