Finding the Fourth Proportional to 208,123.37, 287,210.25 and 112,630.06

Step by Step Solution

1. Step 1: Write the proportion equation
   208,123.37 : 287,210.25 = 112,630.06 : x
2. Step 2: Convert to fraction form
   208,123.37/287,210.25 = 112,630.06/x
3. Step 3: Cross multiply
   208,123.37x = 287,210.25 × 112,630.06
4. Step 4: Simplify right side
   208,123.37x = 32,348,508,575.77
5. Step 5: Solve for x
   x = 32,348,508,575.77/208,123.37
6. Step 6: Final answer
   x = 155,429.49