Finding the Fourth Proportional to 70,399.13, 97,150.79 and 42,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,399.13 : 97,150.79 = 42,111.50 : x
2. Step 2: Convert to fraction form
   70,399.13/97,150.79 = 42,111.50/x
3. Step 3: Cross multiply
   70,399.13x = 97,150.79 × 42,111.50
4. Step 4: Simplify right side
   70,399.13x = 4,091,165,112.61
5. Step 5: Solve for x
   x = 4,091,165,112.61/70,399.13
6. Step 6: Final answer
   x = 58,113.86