Finding the Fourth Proportional to 64,066.58, 96,100.21 and 42,019.57

Step by Step Solution

1. Step 1: Write the proportion equation
   64,066.58 : 96,100.21 = 42,019.57 : x
2. Step 2: Convert to fraction form
   64,066.58/96,100.21 = 42,019.57/x
3. Step 3: Cross multiply
   64,066.58x = 96,100.21 × 42,019.57
4. Step 4: Simplify right side
   64,066.58x = 4,038,089,501.11
5. Step 5: Solve for x
   x = 4,038,089,501.11/64,066.58
6. Step 6: Final answer
   x = 63,029.58