Finding the Fourth Proportional to 70,791.56, 97,687.32 and 42,109.64

Step by Step Solution

1. Step 1: Write the proportion equation
   70,791.56 : 97,687.32 = 42,109.64 : x
2. Step 2: Convert to fraction form
   70,791.56/97,687.32 = 42,109.64/x
3. Step 3: Cross multiply
   70,791.56x = 97,687.32 × 42,109.64
4. Step 4: Simplify right side
   70,791.56x = 4,113,577,877.76
5. Step 5: Solve for x
   x = 4,113,577,877.76/70,791.56
6. Step 6: Final answer
   x = 58,108.31