Finding the Fourth Proportional to 55,419.95, 83,051.33 and 42,881.60

Step by Step Solution

1. Step 1: Write the proportion equation
   55,419.95 : 83,051.33 = 42,881.60 : x
2. Step 2: Convert to fraction form
   55,419.95/83,051.33 = 42,881.60/x
3. Step 3: Cross multiply
   55,419.95x = 83,051.33 × 42,881.60
4. Step 4: Simplify right side
   55,419.95x = 3,561,373,905.75
5. Step 5: Solve for x
   x = 3,561,373,905.75/55,419.95
6. Step 6: Final answer
   x = 64,261.59