Finding the Fourth Proportional to 137,603.76, 189,900.86 and 103,551

Step by Step Solution

1. Step 1: Write the proportion equation
   137,603.76 : 189,900.86 = 103,551 : x
2. Step 2: Convert to fraction form
   137,603.76/189,900.86 = 103,551/x
3. Step 3: Cross multiply
   137,603.76x = 189,900.86 × 103,551
4. Step 4: Simplify right side
   137,603.76x = 19,664,423,953.86
5. Step 5: Solve for x
   x = 19,664,423,953.86/137,603.76
6. Step 6: Final answer
   x = 142,906.15