Finding the Fourth Proportional to 148,123.86, 204,353.85 and 102,779.15

Step by Step Solution

1. Step 1: Write the proportion equation
   148,123.86 : 204,353.85 = 102,779.15 : x
2. Step 2: Convert to fraction form
   148,123.86/204,353.85 = 102,779.15/x
3. Step 3: Cross multiply
   148,123.86x = 204,353.85 × 102,779.15
4. Step 4: Simplify right side
   148,123.86x = 21,003,315,002.23
5. Step 5: Solve for x
   x = 21,003,315,002.23/148,123.86
6. Step 6: Final answer
   x = 141,795.62