Finding the Fourth Proportional to 189,053.82, 260,892.78 and 103,012.50

Step by Step Solution

1. Step 1: Write the proportion equation
   189,053.82 : 260,892.78 = 103,012.50 : x
2. Step 2: Convert to fraction form
   189,053.82/260,892.78 = 103,012.50/x
3. Step 3: Cross multiply
   189,053.82x = 260,892.78 × 103,012.50
4. Step 4: Simplify right side
   189,053.82x = 26,875,217,499.75
5. Step 5: Solve for x
   x = 26,875,217,499.75/189,053.82
6. Step 6: Final answer
   x = 142,156.44