Finding the Fourth Proportional to 107,540.31, 148,407.34 and 59,144.35

Step by Step Solution

1. Step 1: Write the proportion equation
   107,540.31 : 148,407.34 = 59,144.35 : x
2. Step 2: Convert to fraction form
   107,540.31/148,407.34 = 59,144.35/x
3. Step 3: Cross multiply
   107,540.31x = 148,407.34 × 59,144.35
4. Step 4: Simplify right side
   107,540.31x = 8,777,455,947.20
5. Step 5: Solve for x
   x = 8,777,455,947.20/107,540.31
6. Step 6: Final answer
   x = 81,620.15