Finding the Fourth Proportional to 34,870.64, 52,312.48 and 14,108.72

Step by Step Solution

1. Step 1: Write the proportion equation
   34,870.64 : 52,312.48 = 14,108.72 : x
2. Step 2: Convert to fraction form
   34,870.64/52,312.48 = 14,108.72/x
3. Step 3: Cross multiply
   34,870.64x = 52,312.48 × 14,108.72
4. Step 4: Simplify right side
   34,870.64x = 738,062,132.83
5. Step 5: Solve for x
   x = 738,062,132.83/34,870.64
6. Step 6: Final answer
   x = 21,165.72