Finding the Fourth Proportional to 76,071.62, 105,065.00 and 51,830.55

Step by Step Solution

1. Step 1: Write the proportion equation
   76,071.62 : 105,065.00 = 51,830.55 : x
2. Step 2: Convert to fraction form
   76,071.62/105,065.00 = 51,830.55/x
3. Step 3: Cross multiply
   76,071.62x = 105,065.00 × 51,830.55
4. Step 4: Simplify right side
   76,071.62x = 5,445,575,951.27
5. Step 5: Solve for x
   x = 5,445,575,951.27/76,071.62
6. Step 6: Final answer
   x = 71,584.86