Finding the Fourth Proportional to 147,111.28, 220,645.86 and 47,258.62

Step by Step Solution

1. Step 1: Write the proportion equation
   147,111.28 : 220,645.86 = 47,258.62 : x
2. Step 2: Convert to fraction form
   147,111.28/220,645.86 = 47,258.62/x
3. Step 3: Cross multiply
   147,111.28x = 220,645.86 × 47,258.62
4. Step 4: Simplify right side
   147,111.28x = 10,427,418,852.31
5. Step 5: Solve for x
   x = 10,427,418,852.31/147,111.28
6. Step 6: Final answer
   x = 70,881.16