Finding the Fourth Proportional to 52,914.64, 78,856.63 and 51,312.72

Step by Step Solution

1. Step 1: Write the proportion equation
   52,914.64 : 78,856.63 = 51,312.72 : x
2. Step 2: Convert to fraction form
   52,914.64/78,856.63 = 51,312.72/x
3. Step 3: Cross multiply
   52,914.64x = 78,856.63 × 51,312.72
4. Step 4: Simplify right side
   52,914.64x = 4,046,348,175.33
5. Step 5: Solve for x
   x = 4,046,348,175.33/52,914.64
6. Step 6: Final answer
   x = 76,469.35