Finding the Fourth Proportional to 70,902.02, 106,212.94 and 42,738.93

Step by Step Solution

1. Step 1: Write the proportion equation
   70,902.02 : 106,212.94 = 42,738.93 : x
2. Step 2: Convert to fraction form
   70,902.02/106,212.94 = 42,738.93/x
3. Step 3: Cross multiply
   70,902.02x = 106,212.94 × 42,738.93
4. Step 4: Simplify right side
   70,902.02x = 4,539,427,300.91
5. Step 5: Solve for x
   x = 4,539,427,300.91/70,902.02
6. Step 6: Final answer
   x = 64,023.95