Finding the Fourth Proportional to 113,424.31, 156,524.02 and 63,123.31

Step by Step Solution

1. Step 1: Write the proportion equation
   113,424.31 : 156,524.02 = 63,123.31 : x
2. Step 2: Convert to fraction form
   113,424.31/156,524.02 = 63,123.31/x
3. Step 3: Cross multiply
   113,424.31x = 156,524.02 × 63,123.31
4. Step 4: Simplify right side
   113,424.31x = 9,880,314,236.91
5. Step 5: Solve for x
   x = 9,880,314,236.91/113,424.31
6. Step 6: Final answer
   x = 87,109.32