Finding the Fourth Proportional to 106,978.80, 147,635.36 and 59,232.15

Step by Step Solution

1. Step 1: Write the proportion equation
   106,978.80 : 147,635.36 = 59,232.15 : x
2. Step 2: Convert to fraction form
   106,978.80/147,635.36 = 59,232.15/x
3. Step 3: Cross multiply
   106,978.80x = 147,635.36 × 59,232.15
4. Step 4: Simplify right side
   106,978.80x = 8,744,759,788.82
5. Step 5: Solve for x
   x = 8,744,759,788.82/106,978.80
6. Step 6: Final answer
   x = 81,742.92