Finding the Fourth Proportional to 76,100.32, 105,011.29 and 51,521.13

Step by Step Solution

1. Step 1: Write the proportion equation
   76,100.32 : 105,011.29 = 51,521.13 : x
2. Step 2: Convert to fraction form
   76,100.32/105,011.29 = 51,521.13/x
3. Step 3: Cross multiply
   76,100.32x = 105,011.29 × 51,521.13
4. Step 4: Simplify right side
   76,100.32x = 5,410,300,194.75
5. Step 5: Solve for x
   x = 5,410,300,194.75/76,100.32
6. Step 6: Final answer
   x = 71,094.32