Finding the Fourth Proportional to 112,240.31, 168,310.91 and 42,070.41

Step by Step Solution

1. Step 1: Write the proportion equation
   112,240.31 : 168,310.91 = 42,070.41 : x
2. Step 2: Convert to fraction form
   112,240.31/168,310.91 = 42,070.41/x
3. Step 3: Cross multiply
   112,240.31x = 168,310.91 × 42,070.41
4. Step 4: Simplify right side
   112,240.31x = 7,080,908,780.82
5. Step 5: Solve for x
   x = 7,080,908,780.82/112,240.31
6. Step 6: Final answer
   x = 63,087.04