Finding the Fourth Proportional to 147,058.61, 220,498.83 and 65,990.77

Step by Step Solution

1. Step 1: Write the proportion equation
   147,058.61 : 220,498.83 = 65,990.77 : x
2. Step 2: Convert to fraction form
   147,058.61/220,498.83 = 65,990.77/x
3. Step 3: Cross multiply
   147,058.61x = 220,498.83 × 65,990.77
4. Step 4: Simplify right side
   147,058.61x = 14,550,886,473.31
5. Step 5: Solve for x
   x = 14,550,886,473.31/147,058.61
6. Step 6: Final answer
   x = 98,946.17