Finding the Fourth Proportional to 127,620.55, 191,139.49 and 61,107.67

Step by Step Solution

1. Step 1: Write the proportion equation
   127,620.55 : 191,139.49 = 61,107.67 : x
2. Step 2: Convert to fraction form
   127,620.55/191,139.49 = 61,107.67/x
3. Step 3: Cross multiply
   127,620.55x = 191,139.49 × 61,107.67
4. Step 4: Simplify right side
   127,620.55x = 11,680,088,878.89
5. Step 5: Solve for x
   x = 11,680,088,878.89/127,620.55
6. Step 6: Final answer
   x = 91,522.01