Finding the Fourth Proportional to 77,436.66, 106,895.34 and 52,320.18

Step by Step Solution

1. Step 1: Write the proportion equation
   77,436.66 : 106,895.34 = 52,320.18 : x
2. Step 2: Convert to fraction form
   77,436.66/106,895.34 = 52,320.18/x
3. Step 3: Cross multiply
   77,436.66x = 106,895.34 × 52,320.18
4. Step 4: Simplify right side
   77,436.66x = 5,592,783,429.96
5. Step 5: Solve for x
   x = 5,592,783,429.96/77,436.66
6. Step 6: Final answer
   x = 72,223.98