Finding the Fourth Proportional to 106,772.72, 147,333.56 and 59,019.58

Step by Step Solution

1. Step 1: Write the proportion equation
   106,772.72 : 147,333.56 = 59,019.58 : x
2. Step 2: Convert to fraction form
   106,772.72/147,333.56 = 59,019.58/x
3. Step 3: Cross multiply
   106,772.72x = 147,333.56 × 59,019.58
4. Step 4: Simplify right side
   106,772.72x = 8,695,564,094.44
5. Step 5: Solve for x
   x = 8,695,564,094.44/106,772.72
6. Step 6: Final answer
   x = 81,439.94