Finding the Fourth Proportional to 130,070.88, 195,120.72 and 51,174.72

Step by Step Solution

1. Step 1: Write the proportion equation
   130,070.88 : 195,120.72 = 51,174.72 : x
2. Step 2: Convert to fraction form
   130,070.88/195,120.72 = 51,174.72/x
3. Step 3: Cross multiply
   130,070.88x = 195,120.72 × 51,174.72
4. Step 4: Simplify right side
   130,070.88x = 9,985,248,212.20
5. Step 5: Solve for x
   x = 9,985,248,212.20/130,070.88
6. Step 6: Final answer
   x = 76,767.75