Finding the Fourth Proportional to 208,123.86, 287,211.82 and 112,630.56

Step by Step Solution

1. Step 1: Write the proportion equation
   208,123.86 : 287,211.82 = 112,630.56 : x
2. Step 2: Convert to fraction form
   208,123.86/287,211.82 = 112,630.56/x
3. Step 3: Cross multiply
   208,123.86x = 287,211.82 × 112,630.56
4. Step 4: Simplify right side
   208,123.86x = 32,348,828,125.22
5. Step 5: Solve for x
   x = 32,348,828,125.22/208,123.86
6. Step 6: Final answer
   x = 155,430.66